Concept Index (Mailfromd Manual)

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Concept Index ¶

This is a general index of all issues discussed in this manual

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_

`_`	m4 macros
`__defpreproc__`	Built-in constants
`__defstatedir__`	Built-in constants
`__file__`	Built-in constants
`__function__`	Built-in constants
`__git__`	Built-in constants
`__line__`	Built-in constants
`__major__`	Built-in constants
`__minor__`	Built-in constants
`__module__`	Built-in constants
`__package__`	Built-in constants
`__patch__`	Built-in constants
`__preproc__`	Built-in constants
`__statedir__`	Built-in constants
`__version__`	Built-in constants
`_expand_dataseg`	Debugging Functions
`_heap_reserve`	Debugging Functions
`_pollhost`	Compatibility Callout functions
`_pollmx`	Compatibility Callout functions
`_reg`	Debugging Functions
`_register`	Debugging Functions
`_stack_free`	Debugging Functions
`_wd`	Debugging Functions

-
`--prefix`, `configure` option	Building
`--sysconfdir`, `configure` option	Building
`--with-dbm`, `configure` option	Building

!
`!` (exclamation point), `!=` operator	Relational expressions

(
`(string`	DKIM

@
@`var`, special construct	Functions

/
`/etc/postfix/main.cf`	Postfix
`/etc/resolv.conf`	conf-resolver

\
`\D`	command summary
`\E`	command summary
`\L`	command summary
`\S`	command summary
`\U`	command summary

#
‘`#! ... !#`’ initial comment	top-block
‘`#!`’ shell magic sequence	top-block
`#error`	Generated warnings and errors
#error	Generated warnings and errors
`#include`	include
#include statement	include
`#line`	line
`#pragma`	Pragmas
#pragma dbprop	Database functions
#pragma statement	Pragmas
`#warning`	Generated warnings and errors
#warning	Generated warnings and errors

<
`<` (left angle bracket), `<` operator	Relational expressions
`<` (left angle bracket), `<=` operator	Relational expressions

=
`=` (equals sign), `=` operator	Relational expressions

>
`>` (right angle bracket), `>` operator	Relational expressions
`>` (right angle bracket), `>=` operator	Relational expressions

~
`~/.emacs`	Using MFL Mode

$
$(`n`)	Functions
`$@`	Functions
`$#`	Functions
$`n`	Functions

7
`7bit`	Filters

8
`8bit`	Filters

A
`a, -a, mtasim option, summary`	option summary
`accept`	Actions
accept action, defined	Actions
accept action, introduced	Start Up
`accept` in ‘`end`’	begin/end
`ACCEPT_ACTION`	action hook
`access`	System functions
accessing variables from `catch`	Catch and Throw
account probing	SAV
`acl`	conf-milter
`acl`	conf-calloutd-server
action hook	action hook
actions	Actions
actions, header manipulation	Actions
actions, introduced	Simplest Configurations
actions, using in `connect` handler	Handlers
`add`	Actions
add action, defined	Actions
`add` in ‘`begin`’	begin/end
`add` in ‘`end`’	begin/end
adns	Building
Alan Dobkin	Acknowledgments
`alias`	Functions
aliases	Functions
aliases, looking up	Local Account Verification
`all, --all mfdbtool option, introduced`	Database Maintenance
`all, --all mfdbtool option, summary`	Invoking mfdbtool
`always`	conf-callout
`always`	protocol-calloutd
and	Boolean expressions
`append, --append, mtasim option, described`	traces
`append, --append, mtasim option, summary`	option summary
argument number in the list of arguments	Functions
arguments, `catch`	Catch and Throw
arguments, optional	Functions
as	Polling
`ASSERT_ARGCOUNT`	Loadable Library
`ASSERT_ARGTYPE`	Loadable Library
assignment to undeclared variable	Using Variables
assignment to variable	Using Variables
assignment, defined	Assignments
associativity, operators	Precedence
asynchronous syslog	Logging and Debugging
`auth-macros`	pmult-macros
automatic variables	Functions

B
`B`	Filters
back reference interpretation	Literals
back references, in program text	Back references
`backlog`	conf-server
`backlog`	conf-calloutd-server
backslash interpretation	Literals
`base64`	Filters
`begin`	begin/end
‘`begin`’ and `add`	begin/end
‘`begin`’ and `delete`	begin/end
‘`begin`’ and `replace`	begin/end
‘`begin`’, handler restrictions	begin/end
begin, special handler	Start Up
begin, special handler	begin/end
Ben McKeegan	Acknowledgments
Berkeley DB	Building
`binary`	Filters
`bindtextdomain`	NLS Functions
`body`	Handlers
`body_has_nulls`	Mail body functions
`body_string`	Mail body functions
`body-chunk, --body-chunk, mtasim option, summary`	option summary
body, handler	Start Up
`break`	Loops
break statement	Loops
Brent Spencer	Acknowledgments
`bs, -bd, mtasim option, summary`	option summary
`bs, -bs, mtasim option, summary`	option summary
building `mailfromd`	Building
built-in and library functions, introduced	Functions and Modules
built-in constants	Built-in constants
`BURST_DECODE`	Message digest functions
`burst_eb_min_length`	Message digest functions
`BURST_ERR_BODY`	Message digest functions
`BURST_ERR_FAIL`	Message digest functions
`BURST_ERR_IGNORE`	Message digest functions
`bye`	module structure

C
cache database	Database Formats
`cache_used`	Predefined variables
`cache_used` variable, usage example	Predefined variables
cache_used, global variable, introduced	Compatibility Callout functions
cache, disabling	Database functions
cache, getting status	Database functions
caching DNS requests	SAV
`callout`	SMTP Callout functions
`callout`	conf-server
callout server	SMTP Timeouts
`callout_close`	SMTP Callout functions
`callout_do`	SMTP Callout functions
`callout_open`	SMTP Callout functions
`callout_transcript`	Debugging Functions
`callout-socket, --callout-socket mailfromd option, summary`	General Settings
`callout-url`	conf-server
callout, described	SAV
`calloutd`	calloutd
`cancel_program_trace`	Debugging Functions
`case`	Conditionals
`case`, `switch` statement	Conditionals
`catch`	Catch and Throw
`catch` arguments	Catch and Throw
`catch` scope	Catch and Throw
`catch` statement	Catch and Throw
`catch`, accessing variables from	Catch and Throw
`catch`, returning from	Catch and Throw
catch, standalone	Catch and Throw
`cdb_check`	Control database
`cdb_greylist_interval`	Control database
`cdb_name`	Control database
`cdb.mfl`	Control database
`charset`	Filters
`charset`	Filters
`check_host`	SPF Functions
`check_host` function, introduced	SPF Functions
checking SPF host records	SPF Functions
`clamav`	ClamAV
ClamAV	ClamAV
`clamav_stream_max_length`	Predefined variables
clamav_stream_max_length, global vaiable	ClamAV
`clamav_virus_name`	Predefined variables
clamav_virus_name, global variable	ClamAV
clamd.conf	Predefined variables
clamd.conf	ClamAV
`client`	pmult-client
client_addr, `Sendmail` macro	Sendmail
`close`	I/O functions
CNAME chains	conf-resolver
`command`	Configuring Preprocessor
`command`	conf-preprocessor
command line arguments, parsing in MFL	getopt
command line, `mailfromd` invocation syntax	Invocation
comments	Comments
`compact, --compact mfdbtool option, introduced`	Database Maintenance
`compact, --compact mfdbtool option, summary`	Invoking mfdbtool
compaction, database	Database Maintenance
Con Tassios	Acknowledgments
Con Tassios greylisting type	Greylisting
concatenation	Concatenation
conditional statements	Conditionals
`config`	conf-resolver
`config-file, --config-file calloutd option, summary`	invocation-calloutd
`config-help, --config-help calloutd option, summary`	invocation-calloutd
`config-lint, --config-lint calloutd option, summary`	invocation-calloutd
`config-verbose, --config-verbose calloutd option, summary`	invocation-calloutd
configuring the preprocessor	Configuring Preprocessor
confMAPDEF, `Sendmail` macro	Building
confMILTER_MACROS_ENVFROM, mc file directive	Sendmail
`connect`	Handlers
`connect-timeout`	pmult-client
connect, handler	Start Up
`connection`	conf-timeout
const	Constants
constants, built-in	Built-in constants
constants, defining	Constants
constants, using in literals	Constants
constants, using in program text	Constants
`continue`	Actions
continue action, defined	Actions
continue action, introduced	Start Up
`continue` in ‘`end`’	begin/end
`CONTINUE_ACTION`	action hook
controlling argument, getopt	getopt
`copy`	I/O functions
`copy-octal`	Filters
`copy-pass`	Filters
`create_dsn`	Mail Sending Functions
`crlf`	Filters
`crlfdot`	Filters
cross-reference	Testing Filter Scripts
ctype_mismatch, global variable	Character Type
`current_header`	Current Message Functions
`current_header_count`	Current Message Functions
`current_header_nth_name`	Current Message Functions
`current_header_nth_value`	Current Message Functions
`current_message`	Current Message Functions
customization, Emacs	Using MFL Mode
customization, MFL mode	Using MFL Mode

D
D, -D option, described	Preprocessor Usage
D, -D option, summary	Preprocessor Options
`D, -D, mtasim option, summary`	option summary
D, `\D`, a `mtasim` command	interactive mode
`daemon, --daemon mailfromd option, summary`	Operation Modifiers
`daemon, --daemon, mtasim option, described`	daemon mode
`daemon, --daemon, mtasim option, summary`	option summary
`data`	Handlers
data, handler	Start Up
`database`	conf-database
`database`	conf-database
database compaction	Database Maintenance
database formats	Database Formats
database maintenance	Database Maintenance
`database-mode`	conf-database
`database-type`	conf-database
database, listing	Basic Database Operations
databases used by `mailfromd`	Database Formats
`db_expire_interval`	Database functions
`db_get_active`	Database functions
`db_name`	Database functions
`db_set_active`	Database functions
`dbbreak`	Database functions
`dbdel`	Database functions
`dbfirst`	Database functions
`dbget`	Database functions
`dbinsert`	Database functions
`dbkey`	Database functions
DBM	Building
DBM implementation, default	conf-database
DBM scheme	conf-database
`dbmap`	Database functions
`dbnext`	Database functions
`dbprop`	dbprop
`dbprop,`	Database functions
dbprop, pragma	Database functions
`dbput`	Database functions
`dbvalue`	Database functions
`dc`	Character translation
`dclex`	User-defined Exceptions
`debug`	Debugging Functions
`debug`	conf-debug
`debug`	conf-calloutd-log
`debug`	pmult-debug
`debug_level`	Debugging Functions
`debug_spec`	Debugging Functions
`debug-level, --debug-level calloutd option, summary`	invocation-calloutd
`debug, --debug calloutd option, summary`	invocation-calloutd
`debug, --debug mailfromd option, introduced`	Logging and Debugging
`debug, --debug mailfromd option, summary`	Logging and Debugging Options
`debug, --debug mfdbtool option, summary`	Invoking mfdbtool
debugging	Echo
debugging level	Logging and Debugging
debugging the filter script	Testing Filter Scripts
debugging, pmult	pmult-conf
declaring milter state handler	Simplest Configurations
decode MIME	Message body functions
decode MIME	MIME functions
`default`	protocol-calloutd
`default`	conf-server
default communication port	Building
default communication socket	Building
default database type	conf-database
default exception handling	Catch and Throw
default expiration interval	Building
default syslog facility	Logging and Debugging
default user privileges	Building
`default_callout_server_url`	SMTP Callout functions
DEFAULT_EXPIRE_INTERVAL, `configure` variable	Building
DEFAULT_EXPIRE_RATES_INTERVAL, `configure` variable	Building
DEFAULT_SOCKET, `configure` variable	Building
DEFAULT_STATE_DIR, `configure` variable	Building
`DEFAULT_SYSLOG_ASYNC`, `configure` variable	Building
`DEFAULT_SYSLOG_ASYNC`, `configure` variable	420-43x
`DEFAULT_USER`, `configure` variable	Building
`define-macros`	pmult-macros
`define, --define mailfromd option, described`	Preprocessor Usage
`define, --define mailfromd option, summary`	Preprocessor Options
`define, --define, mtasim option, summary`	option summary
`defined`	m4 macros
`delete`	Actions
delete action, defined	Actions
`delete` in ‘`begin`’	begin/end
`delete` in ‘`end`’	begin/end
`delete, --delete mfdbtool option, introduced`	Basic Database Operations
`delete, --delete mfdbtool option, summary`	Invoking mfdbtool
`dequote`	String manipulation
`dgettext`	NLS Functions
diagnostics channel	Logging and Debugging
digest, message	Message digest functions
disabling cache	Database functions
`discard`	Actions
discard action, defined	Actions
discard action, introduced	Start Up
`discard` in ‘`end`’	begin/end
`DISCARD_ACTION`	action hook
DKIM	SPF
`DKIM_EXPL_BAD_ALGORITHM`	DKIM
`DKIM_EXPL_BAD_BASE64`	DKIM
`DKIM_EXPL_BAD_BODY`	DKIM
`DKIM_EXPL_BAD_KEY_TYPE`	DKIM
`DKIM_EXPL_BAD_QUERY`	DKIM
`DKIM_EXPL_BAD_SIG`	DKIM
`DKIM_EXPL_BAD_VERSION`	DKIM
`DKIM_EXPL_DNS_NOTFOUND`	DKIM
`DKIM_EXPL_DNS_UNAVAIL`	DKIM
`DKIM_EXPL_DOMAIN_MISMATCH`	DKIM
`DKIM_EXPL_EXPIRED`	DKIM
`DKIM_EXPL_FROM`	DKIM
`DKIM_EXPL_INTERNAL_ERROR`	DKIM
`DKIM_EXPL_KEY_REVOKED`	DKIM
`DKIM_EXPL_KEY_SYNTAX`	DKIM
`DKIM_EXPL_NO_SIG`	DKIM
`DKIM_EXPL_OK`	DKIM
`DKIM_EXPL_OK`	DKIM
`DKIM_EXPL_SIG_MISS`	DKIM
`DKIM_EXPL_SIG_SYNTAX`	DKIM
`dkim_explanation`	DKIM
`dkim_explanation_code`	DKIM
`dkim_sendmail_commaize`	DKIM
`dkim_sign`	DKIM
`dkim_signing_algorithm`	DKIM
`dkim_verified_signature`	DKIM
`dkim_verified_signature_tag`	DKIM
`dkim_verify`	DKIM
`DKIM_VERIFY_OK`	DKIM
`DKIM_VERIFY_PERMFAIL`	DKIM
`DKIM_VERIFY_TEMPFAIL`	DKIM
DKIM, defined	DKIM
dkim, module	DKIM
DKIM, setting up	Setting up a DKIM record
`dlcall`	Mfmod Interface
`dlopen`	Mfmod Interface
`dngettext`	NLS Functions
`dns_getaddr`	Simplified DNS functions
`dns_getname`	Simplified DNS functions
`dns_query`	dns_query
`dns_reply_count`	dns_query
`dns_reply_ip`	dns_query
`dns_reply_release`	dns_query
`dns_reply_string`	dns_query
`DNS_TYPE_A`	dns_query
`DNS_TYPE_MX`	dns_query
`DNS_TYPE_NS`	dns_query
`DNS_TYPE_PTR`	dns_query
`DNS_TYPE_TXT`	dns_query
`dns.mfl`	dns_query
`dns.mfl`	Simplified DNS functions
do loop	Loops
DomainKeys Identified Mail	DKIM
`domainpart`	String manipulation
`dot`	Filters
`drop`	protocol-calloutd
`dump-code, --dump-code mailfromd option, summary`	Logging and Debugging Options
`dump-grammar-trace, --dump-grammar-trace mailfromd option, summary`	Logging and Debugging Options
`dump-lex-trace, --dump-lex-trace mailfromd option, summary`	Logging and Debugging Options
`dump-macros, --dump-macros mailfromd option, described`	Sendmail
`dump-macros, --dump-macros mailfromd option, summary`	Logging and Debugging Options
`dump-tree, --dump-tree mailfromd option, summary`	Logging and Debugging Options
`dump-xref, --dump-xref mailfromd option, summary`	Logging and Debugging Options

E
`e_badmmq`	Built-in Exceptions
`e_dbfailure`	Built-in Exceptions
`e_divzero`	Built-in Exceptions
`e_eof`	Built-in Exceptions
`e_exists`	Built-in Exceptions
`e_failure`	Built-in Exceptions
`e_format`	Built-in Exceptions
`e_ilseq`	Built-in Exceptions
`e_inval`	Built-in Exceptions
`e_invcidr`	Built-in Exceptions
`e_invip`	Built-in Exceptions
`e_invtime`	Built-in Exceptions
`e_io`	Built-in Exceptions
`e_macroundef`	Built-in Exceptions
`e_not_found`	Built-in Exceptions
`e_range`	Built-in Exceptions
`e_regcomp`	Built-in Exceptions
`e_ston_conv`	Built-in Exceptions
`e_success`	Built-in Exceptions
`e_temp_failure`	Built-in Exceptions
`e_too_many`	Built-in Exceptions
`e_url`	Built-in Exceptions
E, -E option, described	Preprocessor Usage
E, -E option, summary	Preprocessor Options
E, -E option, summary	Logging and Debugging Options
E, `\E`, a `mtasim` command	expect commands
`echo`	Echo
`echo, --echo mailfromd option, echo to stdout or file.`	Testing Filter Scripts
`echo, --echo mailfromd option, summary`	General Settings
`ehlo`	protocol-calloutd
`ehlo_domain`	Predefined variables
`ehlo-domain`	conf-callout
`elif`	Conditionals
`else`	Conditionals
Emacs, MFL mode	Using MFL Mode
`EMAIL_COMMENTS`	Email processing functions
`EMAIL_DOMAIN`	Email processing functions
`EMAIL_LOCAL`	Email processing functions
`email_map`	Email processing functions
`EMAIL_MULTIPLE`	Email processing functions
`EMAIL_PERSONAL`	Email processing functions
`EMAIL_ROUTE`	Email processing functions
`email_valid`	Email processing functions
`email.mfl`	Email processing functions
`enable`	conf-preprocessor
`enable`	conf-database
enable-syslog-async, `--enable-syslog-async`, `configure` option	Building
`enable-vrfy`	conf-callout
Enabling MFL mode	Using MFL Mode
encapsulation boundaries, RFC 934	Message digest functions
`end`	begin/end
‘`end`’ and `accept`	begin/end
‘`end`’ and `add`	begin/end
‘`end`’ and `continue`	begin/end
‘`end`’ and `delete`	begin/end
‘`end`’ and `discard`	begin/end
‘`end`’ and `reject`	begin/end
‘`end`’ and `replace`	begin/end
‘`end`’ and `tempfail`	begin/end
‘`end`’, handler restrictions	begin/end
end, special handler	Start Up
end, special handler	begin/end
enumeration	Constants
`envfrom`	Handlers
envfrom, handler	Start Up
`envrcpt`	Handlers
envrcpt, handler	Start Up
`eoh`	Handlers
eoh, handler	Start Up
`eom`	Handlers
`eom-timeout`	pmult-client
eom, handler	Start Up
equals sign (`=`), `=` operator	Relational expressions
`escape`	String manipulation
estimated time of sending, prediction of	Basic Database Operations
exception handler scope	Catch and Throw
exception handler, returning from	Catch and Throw
exception handlers	Catch and Throw
exception types	Exceptions
exception-handling routines	Catch and Throw
exceptions, default handling	Catch and Throw
exceptions, defined	Exceptions
exceptions, raising from code	Catch and Throw
exceptions, symbolic names	Exceptions
exclamation point (`!`), `!=` operator	Relational expressions
expect mode, `mtasim`	expect commands
`expire-interval`	conf-database
`expire-interval, --expire-interval mfdbtool option, summary`	Invoking mfdbtool
`expire, --expire mfdbtool option, introduced`	Database Maintenance
`expire, --expire mfdbtool option, summary`	Invoking mfdbtool
explicit type casts	Type casting
expressions	Expressions

F
`F_OK`	System functions
f, `Sendmail` macro	Sendmail
Fail, SPF result code	SPF Functions
FAMILY_INET	Handlers
FAMILY_INET6	Handlers
FAMILY_STDIO	Handlers
FAMILY_UNIX	Handlers
fatal runtime errors	Runtime errors
`fd_delimiter`	I/O functions
`fd_set_delimiter`	I/O functions
FDL, GNU Free Documentation License	Copying This Manual
`fi`	Conditionals
`file`	conf-database
`file, --file mfdbtool option, summary`	Invoking mfdbtool
filter pipe	Filters
filter script, debugging	Testing Filter Scripts
filter script, described	Start Up
filter script, running in test mode	Testing Filter Scripts
`filter_fd`	Filtering functions
`filter_string`	Filtering functions
Finding function definition	Using MFL Mode
`fnmatches`	Special comparisons
for loop	Loops
`foreground, --foreground calloutd option, summary`	invocation-calloutd
`foreground, --foreground mailfromd option, summary`	General Settings
`format, --format mfdbtool option, introduced`	Basic Database Operations
`format, --format mfdbtool option, summary`	Invoking mfdbtool
`format, --format mfdbtool option, using with --list`	Basic Database Operations
`from`	import
`from`	Filters
from	Polling
`from … import`	import
`fromrd`	Filters
`func` statement, function definition	Functions
function arguments, counting	Functions
function arguments, getting the number of	Functions
function calls	Functions and Modules
function definition, syntax of	Functions
function returning void	Functions
function, defined	Functions and Modules

G
`g, -g, mtasim option, summary`	option summary
g, `transform` flag	String transformation
`gacopyz-log, --gacopyz-log mailfromd option, summary`	Logging and Debugging Options
`gacopyz-log, --gacopyz-log, mtasim option, summary`	option summary
GDBM	Building
GeoIP2	Geolocation functions
`geoip2_dbname`	Geolocation functions
`geoip2_get`	Geolocation functions
`geoip2_get_json`	Geolocation functions
`geoip2_open`	Geolocation functions
geolocation	Geolocation functions
`get`	protocol-calloutd
`getbufsize(number`	I/O functions
`getbuftype(number`	I/O functions
`getdelim`	I/O functions
`getdomainname`	System functions
`getenv`	System functions
`gethostname`	System functions
`getline`	I/O functions
`getmacro`	Macro access
`getmx`	Simplified DNS functions
`getns`	Simplified DNS functions
`getopt`	getopt
`getpwnam`	Passwd functions
`getpwuid`	Passwd functions
`gettext`	NLS Functions
getting cache status	Database functions
global cleanup handler	startup/shutdown
global startup handler	startup/shutdown
globbing patterns	Special comparisons
GNU Emacs, MFL mode	Using MFL Mode
GNU Readline	interactive mode
`greylist`	greylist
`greylist`	Greylisting functions
greylist database	Database Formats
`greylist_seconds_left`	Predefined variables
greylist_seconds_left, global variable	Greylisting functions
greylist_seconds_left, global variable, introduced	Greylisting
greylisting types	Greylisting
greylisting, Con Tassios type	Greylisting
greylisting, traditional	Greylisting
`group`	conf-priv
`group, --group calloutd option, summary`	invocation-calloutd
`group, --group mailfromd option, summary`	General Settings
`group, --group, mtasim option, described`	interactive mode
`group, --group, mtasim option, summary`	option summary
groups	Starting and Stopping
growth policy, stack	stacksize

H
handler arguments	Handlers
handler declaration	Simplest Configurations
handler, defined	Handlers
handler, described	Start Up
handler, global cleanup	startup/shutdown
handler, global startup	startup/shutdown
handler, session cleanup	begin/end
handler, session initialization	begin/end
handler, session startup	begin/end
`handshake-timeout`	conf-callout
hard STMP timeout	SMTP Timeouts
`hasmx`	Simplified DNS functions
`hasmx`, definition of the function	Catch and Throw
`hasns`	Simplified DNS functions
`header`	Handlers
`header`	Filters
header manipulation actions	Actions
header modification	Header modification functions
`header_add`	Header modification functions
`header_add`	Header modification functions
`header_delete`	Header modification functions
`header_insert`	Header modification functions
`header_prefix_all`	Header modification functions
`header_prefix_pattern`	Header modification functions
`header_rename`	Header modification functions
`header_rename.mfl`	Header modification functions
`header_rename.mfl`	Header modification functions
`header_rename.mfl`	Header modification functions
`header_replace`	Header modification functions
header, handler	Start Up
‘`Heap overrun; increase #pragma stacksize`’, runtime error	Runtime errors
`helo`	Handlers
`helo`	conf-timeout
helo, handler	Start Up
`heloarg_test`	Special test functions
`heloarg_test.mfl`	Special test functions
`help, --help calloutd option, summary`	invocation-calloutd
`HELP`, `mtasim` statement	interactive mode
here document	Here Documents
`host`	protocol-calloutd
`hostfirst`	protocol-calloutd
`hostname`	Simplified DNS functions
`hostonly`	protocol-calloutd
`htonl`	Internet address manipulation functions
`htons`	Internet address manipulation functions

I
i, `Sendmail` macro	Sendmail
i, `Sendmail` macro in `MeTA1`	pmult-macros
i, `Sendmail` macro in `Postfix`	Postfix
i, `transform` flag	String transformation
i18n	NLS Functions
`iconv`	Filters
`id`	conf-server
`id`	conf-calloutd-server
`if`	Conditionals
`ignore-failed-reads, --ignore-failed-reads mfdbtool option, summary`	Invoking mfdbtool
implicit type casts	Type casting
implicit variable declaration	Using Variables
`import`	import
importing from modules	import
include search path, introduced	include
include_once	include
`include-path`	conf-base
`include-path, --include-path mailfromd option, summary`	General Settings
including files	include
indentation, MFL, default	Using MFL Mode
`index`	String manipulation
`index`	String manipulation
`inet_aton`	Internet address manipulation functions
`inet_ntoa`	Internet address manipulation functions
infinite loop	Loops
`initial-response`	conf-timeout
`inline-comment`	Filters
`inline-comment`	Filters
INPUT_MAIL_FILTER, mc file directive	Sendmail
internationalization	NLS Functions
`interval`	String manipulation
‘`Invalid back-reference number`’, runtime error	Runtime errors
‘`Invalid exception number`’, runtime error	Runtime errors
invocation	Invocation
`io_buffer_size`	I/O functions
`io_buffering`	I/O functions
`io-timeout`	conf-timeout
`is_greylisted`	Greylisting functions
`is_ip`	8170-9000
`is_ip.mfl`	8170-9000
`is_ip4str(string`	Internet address manipulation functions
`is_ip6str(string`	Internet address manipulation functions
`is_ipstr(string`	Internet address manipulation functions
`isalnum`	Character Type
`isalpha`	Character Type
`isascii`	Character Type
`isblank`	Character Type
`iscntrl`	Character Type
`isdigit`	Character Type
`isgraph`	Character Type
`islower`	Character Type
`ismx`	Simplified DNS functions
`isprint`	Character Type
`ispunct`	Character Type
`isspace`	Character Type
`isupper`	Character Type
`isxdigit`	Character Type

J
Jan Rafaj	Acknowledgments
Jeff Ballard	Acknowledgments
John McEleney	Acknowledgments

K
keywords	Reserved Words

L
L, `\L`, a `mtasim` command	interactive mode
l10n	NLS Functions
`last_poll_greeting`	Predefined variables
`last_poll_helo`	Predefined variables
`last_poll_host`	Predefined variables
last_poll_host, global variable, introduced	Compatibility Callout functions
`last_poll_recv`	Predefined variables
last_poll_recv, global variable, introduced	Compatibility Callout functions
`last_poll_sent`	Predefined variables
last_poll_sent, global variable, introduced	Compatibility Callout functions
left angle bracket (`<`), `<` operator	Relational expressions
left angle bracket (`<`), `<=` operator	Relational expressions
`len_to_netmask`	Internet address manipulation functions
`length`	String manipulation
`libmaxminddb`	Geolocation functions
library and built-in functions, introduced	Functions and Modules
line, `#line` statement	line
`linecon`	Filters
`linecon`	Filters
`linelen`	Filters
lint mode	Testing Filter Scripts
`lint, --lint mailfromd option, introduced`	Testing Filter Scripts
`lint, --lint mailfromd option, summary`	Logging and Debugging Options
`list, --list mfdbtool option, described`	Basic Database Operations
`list, --list mfdbtool option, summary`	Invoking mfdbtool
`listen`	conf-server
`listen`	conf-calloutd-server
`listen`	pmult-conf
`listens`	Special test functions
listing a database contents	Basic Database Operations
literal concatenation	Concatenation
literals	Literals
local state directory	Building
local variables	Functions
`localdomain`	System functions
`localdomain.mfl`	System functions
localization	NLS Functions
`localpart`	String manipulation
`location-column, --location-column mailfromd option, described`	Testing Filter Scripts
`location-column, --location-column mailfromd option, summary`	Logging and Debugging Options
`log-facility, --log-facility calloutd option, summary`	invocation-calloutd
`log-facility, --log-facility mailfromd option, introduced`	Logging and Debugging
`log-facility, --log-facility mailfromd option, summary`	Logging and Debugging Options
`log-level`	pmult-client
`log-tag, --log-tag calloutd option, summary`	invocation-calloutd
`log-tag, --log-tag mailfromd option, introduced`	Logging and Debugging
`log-tag, --log-tag mailfromd option, summary`	Logging and Debugging Options
`logger`	conf-debug
`logger`	conf-calloutd-log
`logger, --logger calloutd option, summary`	invocation-calloutd
`logger, --logger mailfromd option, introduced`	Logging and Debugging
`logger, --logger mailfromd option, summary`	Logging and Debugging Options
`loop`	Loops
loop body	Loops
loop statement	Loops
loop, do-style	Loops
loop, for-style	Loops
loop, infinite	Loops
loop, while-style	Loops
`ltrim`	String manipulation

M
m4	Preprocessor
macro expansion	Literals
`macro_defined`	Macro access
macros, MeTA1	pmult-macros
macros, referencing	Sendmail Macros
`mail`	conf-timeout
mail filtering language	MFL
mail sending rate, explained	Rate Limit
Mail Transfer Agent (MTA)	Start Up
`mail-from-address`	conf-callout
mailbox functions	Mailbox functions
`mailbox_append_message`	Mailbox functions
`mailbox_close`	Mailbox functions
`mailbox_get_message`	Mailbox functions
`mailbox_messages_count`	Mailbox functions
`mailbox_open`	Mailbox functions
mailer URL	Mail Sending Functions
`mailer, --mailer mailfromd option, summary`	General Settings
`mailfrom`	protocol-calloutd
`mailfrom_address`	Predefined variables
`mailfromd`, building	Building
mailutils	Building
`mailutils_set_debug_level`	Debugging Functions
main, MFL function	Run Mode
maintenance, database	Database Maintenance
`mappwnam`	Passwd functions
`mappwuid`	Passwd functions
`match_cidr`	Internet address manipulation functions
`match_cidr.mfl`	8170-9000
`match_dnsbl`	Blacklisting Functions
match_dnsbl, definition	Some Useful Functions
`match_dnsbl.mfl`	Blacklisting Functions
`match_rhsbl`	Blacklisting Functions
`match_rhsbl.mfl`	Blacklisting Functions
`matches`	Special comparisons
`max-cname-chain`	conf-resolver
`max-instances`	conf-server
`max-instances`	conf-calloutd-server
`max-mfmods`	conf-runtime
`max-open-mailboxes`	conf-runtime
`max-open-messages`	conf-runtime
`max-pmilter-fd`	pmult-conf
`max-streams`	conf-runtime
`max-threads-hard`	pmult-conf
`max-threads-soft`	pmult-conf
`MaxRecipientsPerMessage`, `sendmail` option	Controlling Number of Recipients
‘`memory chunk too big to fit into heap`’, runtime error	Runtime errors
message digest	Message digest functions
message functions	Message functions
message modification queue	Message modification queue
`message_body_decode`	MIME functions
`message_body_is_empty`	Message functions
`message_body_lines`	Message body functions
`message_body_rewind`	Message body functions
`message_body_size`	Message body functions
`message_body_to_stream`	Message body functions
`message_burst`	Message digest functions
`message_close`	Message functions
`message_content_type`	MIME functions
`message_count_parts`	MIME functions
`message_find_header`	Header functions
`message_from_stream`	Message functions
`message_get_part`	MIME functions
`message_has_header`	Header functions
`message_header_count`	Header functions
`message_header_decode`	Mail header functions
`message_header_encode`	Mail header functions
`message_header_lines`	Header functions
`message_header_size`	Header functions
`message_is_multipart`	MIME functions
`message_lines`	Message functions
`message_nth_header_name`	Header functions
`message_nth_header_value`	Header functions
`message_part_decode(number`	MIME functions
`message_read_body_line`	Message body functions
`message_read_line`	Message functions
`message_rewind`	Message functions
`message_size`	Message functions
`message_to_stream`	Message functions
Message-ID, exporting	Logging and Debugging
Message-ID, exporting in `mc` file	Sendmail
Message-ID, using in `mailfromd` logs	Logging and Debugging
meta1	MeTA1
meta1 macros	pmult-macros
`MF_SIEVE_DEBUG_INSTR`	Sieve Interface
`MF_SIEVE_DEBUG_TRACE`	Sieve Interface
`MF_SIEVE_FILE`	Sieve Interface
`MF_SIEVE_LOG`	Sieve Interface
`MF_SIEVE_TEXT`	Sieve Interface
`mfdbtool`	Basic Database Operations
`mfdbtool`	mfdbtool
MFL	MFL
MFL mode,	Using MFL Mode
MFL mode, enabling	Using MFL Mode
MFL mode, GNU Emacs	Using MFL Mode
`mfl-basic-offset`	Using MFL Mode
`mfl-case-line-offset`	Using MFL Mode
`mfl-comment-offset`	Using MFL Mode
`mfl-include-path`	Using MFL Mode
`mfl-loop-continuation-offset`	Using MFL Mode
`mfl-loop-statement-offset`	Using MFL Mode
`mfl-mailfromd-command`	Using MFL Mode
`mfl-mode.el`	Using MFL Mode
`mfl-returns-offset`	Using MFL Mode
mfmod	mfmod
`mfmod_data_type_str(mfmod_data_type`	Loadable Library
`mfmod_error`	Loadable Library
`mfmod_error_argtype`	Loadable Library
`mfmod_message`	Loadable Library
`mfmod_number`	Loadable Library
`MFMOD_PARAM`	Loadable Library
`mfmod_string`	Loadable Library
`mfmod-path`	conf-runtime
mfmod, interface module	Interface Module
mfmod, loadable library	Loadable Library
`mfmod.h`	Loadable Library
`mfmod.m4`	mfmodnew
mfmodnew	mfmodnew
milter abort	rset
milter stage handler arguments	Handlers
milter stage handler, defined	Handlers
milter state handler, declaring	Simplest Configurations
milter state handler, described	Start Up
`milter_action`	Predefined variables
`milter_action_name`	Informative Functions
`milter_action_name`	Informative Functions
`milter_client_address`	Predefined variables
`milter_client_family`	Predefined variables
`milter_server_address`	Predefined variables
`milter_server_family`	Predefined variables
`milter_server_id`	Predefined variables
`milter_state`	Predefined variables
`milter_state_begin`	Predefined variables
`milter_state_body`	Predefined variables
`milter_state_code`	Informative Functions
`milter_state_connect`	Predefined variables
`milter_state_data`	Predefined variables
`milter_state_end`	Predefined variables
`milter_state_envfrom`	Predefined variables
`milter_state_envrcpt`	Predefined variables
`milter_state_eoh`	Predefined variables
`milter_state_eom`	Predefined variables
`milter_state_header`	Predefined variables
`milter_state_helo`	Predefined variables
`milter_state_name`	Informative Functions
`milter_state_none`	Predefined variables
`milter_state_shutdown`	Predefined variables
`milter_state_startup`	Predefined variables
`milter-actions, --milter-actions, mtasim option, summary`	option summary
`milter-proto, --milter-proto, mtasim option, summary`	option summary
`milter-socket, --milter-socket mailfromd option, summary`	General Settings
`milter-timeout`	conf-milter
`milter-timeout, --milter-timeout mailfromd option, summary`	Timeout Control
`milter-timeout, --milter-timeout, mtasim option, summary`	option summary
`milter-version, --milter-version, mtasim option, summary`	option summary
`milter.mfl`	Predefined variables
`miltermacros`	miltermacros
MIME, decoding	Message body functions
MIME, decoding	MIME functions
`mime.mfl`	MIME functions
`mimedecode`	Message body functions
`mimedecode`	MIME functions
`mimedecode`	Filters
`mmq_purge`	Message modification queue
`mode`	protocol-calloutd
`module`	module structure
module declaration	module structure
module search path	import
`module-path`	conf-base
`module-path, --module-path mailfromd option, summary`	General Settings
module, defined	Functions and Modules
module, defined	Modules
MTA	Start Up
`mtasim`	mtasim
`mtasim` administrative commands	interactive mode
`mtasim` auto mode	interactive mode
`mtasim` daemon mode	daemon mode
`mtasim` expect mode	expect commands
`mtasim, --mtasim mailfromd option, summary`	General Settings
`mtasim`, declare sender socket	interactive mode
`mtasim`, defining Sendmail macros	interactive mode
`mtasim`, introduced	Testing Filter Scripts
`mtasim`, listing Sendmail macros	interactive mode
`mtasim`, undefining Sendmail macros	interactive mode
`mtasim`, using in shell scripts	expect commands
multiline strings	Here Documents
multiple sender addresses	Predefined variables
multiple sender addresses, using with polling commands.	Compatibility Callout functions
mx fnmatches	Special comparisons
mx matches	Special comparisons
`mxfirst`	protocol-calloutd
`mxonly`	protocol-calloutd

N
`N_`	m4 macros
Nacho González López	Acknowledgments
name clashes	Shadowing
National Language Support	NLS Functions
Navigating through function definitions	Using MFL Mode
negative expiration period, defined	Database Formats
`negative-expire-interval`	conf-database
`netmask_to_len`	Internet address manipulation functions
Neutral, SPF result code	SPF Functions
`never`	conf-callout
`never`	protocol-calloutd
`next`	Loops
next statement	Loops
`ngettext`	NLS Functions
NLS	NLS Functions
`nls.mfl`	NLS Functions
‘`No previous regular expression`’, runtime error	Runtime errors
`no-interactive, --no-interactive, mtasim option, summary`	option summary
`no-preprocessor, --no-preprocessor mailfromd option, summary`	Preprocessor Options
`no-preprocessor, --no-preprocessor mailfromd option, usage`	Preprocessor Usage
`no-site-config, --no-site-config calloutd option, summary`	invocation-calloutd
non_smtpd_milters, postfix configuration	Postfix
non-blocking syslog	Logging and Debugging
`none`	Filters
None, SPF result code	SPF Functions
not	Boolean expressions
‘`Not enough memory`’, runtime error	Runtime errors
`ntohl`	Internet address manipulation functions
`ntohs`	Internet address manipulation functions
number of actual arguments	Functions

O
`OLD_EXCEPTION_CODES`, preprocessor symbol	43x-440
`on` statement	Polling
`ondemand`	conf-callout
`ondemand`	protocol-calloutd
`open`	I/O functions
operator associativity	Precedence
operator precedence, defined	Precedence
`optarg`	getopt
`opterr`	getopt
`optimize, --optimize mailfromd option, summary`	General Settings
`optind`	getopt
`option`	conf-server
optional arguments to a function	Functions
optional arguments, checking if supplied	Functions
`optopt`	getopt
or	Boolean expressions
‘`Out of stack space; increase #pragma stacksize`’, runtime error	Runtime errors
overriding initial variable values	Testing Filter Scripts

P
parsing command line arguments	getopt
`pass`	Pass
`pass-defines`	Configuring Preprocessor
`pass-defines`	conf-preprocessor
`pass-includes`	Configuring Preprocessor
`pass-includes`	conf-preprocessor
Pass, SPF result code	SPF Functions
passing variable arguments on to another function	Functions
‘`pc out of range`’, runtime error	Runtime errors
Peter Markeloff	Acknowledgments
Phil Miller	Acknowledgments
`pidfile`	conf-base
`pidfile`	conf-calloutd-setup
`pidfile`	pmult-conf
pidfile	Starting and Stopping
`pidfile, --pidfile calloutd option, summary`	invocation-calloutd
`pidfile, --pidfile mailfromd option, summary`	General Settings
`pies`	pmult
pipe	Filters
`pmilter-debug`	pmult-debug
`pmult`	pmult
pmult debugging	pmult-conf
`pmult`, described	pmult
`poll` command, standard verification	Polling
`poll` command, strict verification	Polling
`poll` keyword	Polling
`poll` statement, defined	Polling
`poll.mfl`	Compatibility Callout functions
`port, --port mailfromd option, summary`	General Settings
`port, --port, mtasim option, described`	interactive mode
`port, --port, mtasim option, summary`	option summary
`portprobe`	Special test functions
`portprobe.mfl`	Special test functions
positive expiration period, defined	Database Formats
`positive-expire-interval`	conf-database
Postfix	Postfix
`postfix-macros.sed`	Postfix
`pp-setup`	Preprocessor
pragmatic comments	Pragmas
precedence, operators	Precedence
`precious`	rset
`precious`	Variables
precious variables	rset
predefined variables	Predefined variables
`predict, --predict mfdbtool option, introduced`	Basic Database Operations
`predict, --predict mfdbtool option, summary`	Invoking mfdbtool
`preprocessor`	conf-preprocessor
preprocessor	Preprocessor
preprocessor configuration	Configuring Preprocessor
preprocessor setup file	Preprocessor
`preprocessor, --preprocessor mailfromd option, summary`	Preprocessor Options
`preprocessor, --preprocessor mailfromd option, usage`	Preprocessor Usage
`preprocessor.command`	Configuring Preprocessor
`preprocessor.pass-defines`	Configuring Preprocessor
`preprocessor.pass-includes`	Configuring Preprocessor
`preprocessor.setup-file`	Configuring Preprocessor
`primitive_hasmx`	Simplified DNS functions
`primitive_hasns`	Simplified DNS functions
`primitive_hostname`	Simplified DNS functions
`primitive_ismx`	Simplified DNS functions
`primitive_resolve`	Simplified DNS functions
`printf`	m4 macros
probe message	SAV
procedures	Functions
`prog`	Handlers
`program_trace`	Debugging Functions
`progress`	EOM Functions
`prompt, --prompt, mtasim option, summary`	option summary
`ptr_validate`	Simplified DNS functions
`public`	Variables
`public`	Functions

Q
`Q`	Filters
`qr`	String transformation
qualifier, function declaration	Functions
qualifiers, variable declaration	Variables
`quarantine`	Quarantine functions
`quit`	conf-timeout
`quit`	protocol-calloutd
`quoted-printable`	Filters

R
`R_OK`	System functions
raising exceptions	Catch and Throw
`rate`	Rate limiting functions
rate database	Database Formats
`rateok`	Rate limiting functions
`rateok.mfl`	Rate limiting functions
`rc.mailfromd`	Starting and Stopping
`rcpt`	conf-timeout
`rcpt_add`	Envelope modification functions
`rcpt_count`	Predefined variables
`rcpt_delete`	Envelope modification functions
`read`	I/O functions
`read-timeout`	pmult-client
readline	interactive mode
`regex`	regex
regular expression matching	Special comparisons
`reject`	Actions
reject action, defined	Actions
reject action, introduced	Start Up
`reject` in ‘`end`’	begin/end
reject messages, marking cached rejects	Predefined variables
`REJECT_ACTION`	action hook
`relayed`	Database functions
`relayed-domain-file`	conf-base
`relayed-domain-file, --relayed-domain-file mailfromd option, summary`	General Settings
`replace`	Actions
replace action, defined	Actions
`replace` in ‘`begin`’	begin/end
`replace` in ‘`end`’	begin/end
`replbody`	Body Modification Functions
`replbody_fd`	Body Modification Functions
`replstr`	String manipulation
`require`	Functions and Modules
`require`	import
requiring modules	import
reserved words	Reserved Words
`resolv-conf-file, --resolv-conf-file calloutd option, summary`	invocation-calloutd
`resolv-conf-file, --resolv-conf-file mailfromd option, summary`	General Settings
`resolve`	Simplified DNS functions
`RESOLVE_DFL`	dns_query
`RESOLVE_DFL`	Simplified DNS functions
`RESOLVE_IP4`	dns_query
`RESOLVE_IP4`	Simplified DNS functions
`RESOLVE_IP6`	dns_query
`RESOLVE_IP6`	Simplified DNS functions
`RESOLVE_NONE`	dns_query
`resolver`	conf-resolver
return statement, defined	Functions
returning from a catch	Catch and Throw
returning from an exception handler	Catch and Throw
`returns` statement, function definition	Functions
`reuseaddr`	conf-server
`reuseaddr`	conf-calloutd-server
`reverse_ipstr(string`	Internet address manipulation functions
`revip`	8170-9000
revip, definition of	Some Useful Functions
`revip.mfl`	8170-9000
`revstr`	String manipulation
`rewind`	I/O functions
`rfc822`	Filters
right angle bracket (`>`), `>` operator	Relational expressions
right angle bracket (`>`), `>=` operator	Relational expressions
`rindex`	String manipulation
`rindex`	String manipulation
RSET	rset
`rset`	conf-timeout
`rtrim`	String manipulation
`run`	protocol-calloutd
run mode	Run Mode
`run, --run mailfromd option, described`	Run Mode
`run, --run mailfromd option, summary`	Operation Modifiers
`runtime`	conf-runtime
runtime error	Runtime errors
runtime errors, fatal	Runtime errors
runtime errors, tracing	Runtime errors

S
s-expression	String transformation
S, `\S`, a `mtasim` command	interactive mode
`sa`	SpamAssassin
`sa_code`	Predefined variables
`SA_FORGET`	SpamAssassin
`sa_format_report_header`	String manipulation
`sa_format_score`	String manipulation
`sa_keywords`	Predefined variables
sa_keywords, global variable	SpamAssassin
`SA_LEARN_HAM`	SpamAssassin
`SA_LEARN_SPAM`	SpamAssassin
`SA_REPORT`	SpamAssassin
sa_score, global variable	SpamAssassin
`SA_SYMBOLS`	SpamAssassin
`sa_threshold`	Predefined variables
sa_threshold, global variable	SpamAssassin
`sa.mfl`	String manipulation
`safedb_verbose`	Predefined variables
`safedb_verbose`	Database functions
`safedb.mfl`	Database functions
`safedbdel`	Database functions
`safedbget`	Database functions
`safedbmap`	Database functions
`safedbput`	Database functions
scope of a `catch`	Catch and Throw
scope of exception handlers	Catch and Throw
scope of visibility	scope of visibility
scope of visibility, functions	Functions
scope of visibility, variables	Variables
script file checking	Testing Filter Scripts
`script-file`	conf-base
scripting, parsing command line arguments	getopt
`sed`	String transformation
selecting syslog facility	Logging and Debugging
`send_dsn`	Mail Sending Functions
`send_mail`	Mail Sending Functions
`send_message`	Mail Sending Functions
`send_text`	Mail Sending Functions
sender address verification, described	SAV
sender address verification, limitations	Limitations
Sender Policy Framework	SPF
Sender Policy Framework, defined	SPF Functions
sender verification, writing tests	Polling
`sender-socket, --sender-socket, mtasim option, summary`	option summary
sending rate, explained	Rate Limit
Sendmail macros in ‘`end`’	begin/end
`Sendmail` macros, exporting	Sendmail
Sendmail macros, referencing	Sendmail Macros
sendmail macros, setting from the command line	Testing Filter Scripts
Sergey Afonin	Acknowledgments
`server`	conf-server
`server`	conf-calloutd-server
server, callout	SMTP Timeouts
session cleanup handler	begin/end
session startup handler	begin/end
`set`	Variables
`set`	Assignments
`set_from`	Envelope modification functions
`set, --set calloutd option, summary`	invocation-calloutd
`setbuf(number`	I/O functions
`setup-file`	Configuring Preprocessor
`setup-file`	conf-preprocessor
`setvar`	conf-base
shadowing, constant–constant	Shadowing
shadowing, defined	Shadowing
shadowing, variable	Shadowing
shadowing, variable–constant	Shadowing
`show-config-options, --show-config-options calloutd option, summary`	invocation-calloutd
`show-defaults, --show-defaults mailfromd option, introduced`	Databases
`show-defaults, --show-defaults mailfromd option, summary`	Informational Options
`SHUT_RD`	I/O functions
`SHUT_RDWR`	I/O functions
`SHUT_WR`	I/O functions
`shutdown`	startup/shutdown
`shutdown`	I/O functions
shutdown, special handler	startup/shutdown
`sid`	protocol-calloutd
`sieve`	Sieve Interface
Sieve	Sieve Interface
`sieve.mfl`	Sieve Interface
SIGHUP	Starting and Stopping
SIGINT	Starting and Stopping
signals	Starting and Stopping
SIGQUIT	Starting and Stopping
SIGTERM	Starting and Stopping
Simon Christian	Acknowledgments
Simon Kelley	Building
`single-process`	conf-server
`single-process`	conf-calloutd-server
`single-process, --single-process calloutd option, summary`	invocation-calloutd
`single-process, --single-process mailfromd option, summary`	Logging and Debugging Options
`site-start.el`	Using MFL Mode
`sleep`	System functions
`smtp-starttls`	conf-callout
`smtp-timeout`	conf-timeout
`smtp-timeout`	conf-timeout
smtpd_milters, postfix configuration	Postfix
socket map	Sockmaps
`sockmap_lookup`	Sockmaps
`sockmap_single_lookup`	Sockmaps
`sockmap.mfl`	Sockmaps
soft SMTP timeout	SMTP Timeouts
SoftFail, SPF result code	SPF Functions
`source-info, --source-info calloutd option, summary`	invocation-calloutd
`source-info, --source-info mailfromd option, summary`	Logging and Debugging Options
`source-ip`	conf-base
`source-ip`	conf-calloutd-setup
`source-ip, --source-ip calloutd option, summary`	invocation-calloutd
`source-ip, --source-ip calloutd option, summary`	invocation-calloutd
`source-ip, --source-ip mailfromd option, summary`	General Settings
SpamAssassin	SpamAssassin
`spamc`	SpamAssassin
spamd	SpamAssassin
`spawn`	I/O functions
SPF	SPF
`spf_check_host`	SPF Functions
`spf_explanation`	SPF Functions
`spf_explanation_prefix`	SPF Functions
`spf_mechanism`	SPF Functions
`spf_status_string`	SPF Functions
`spf_test_record`	SPF Functions
SPF, checking host record	SPF Functions
SPF, defined	SPF Functions
`spf.mfl`	SPF Functions
`sprintf`	String formatting
`sq`	Character translation
`ssl-ca-file`	conf-callout
`ssl-certificate-file`	conf-callout
`ssl-key-file`	conf-callout
`ssl-priorities`	conf-callout
stack growth policy	stacksize
stack traces, reading	Runtime errors
‘`Stack underflow`’, runtime error	Runtime errors
`stack_trace`	Debugging Functions
`stack_trace` function, introduced	Runtime errors
`stack_trace_format`	Debugging Functions
`stack_trace_top`	Debugging Functions
`stack-trace`	conf-debug
`stack-trace, --stack-trace mailfromd option, explained`	Runtime errors
`stack-trace, --stack-trace mailfromd option, summary`	Logging and Debugging Options
`stacksize`	stacksize
stage handler arguments	Handlers
stage handler, defined	Handlers
standalone catch	Catch and Throw
standard address verification	SAV
standard error, using for diagnostics output	Logging and Debugging
standard verification with `poll`	Polling
`starttls`	protocol-calloutd
STARTTLS in SMTP callout sessions	conf-callout
`startup`	startup/shutdown
startup	Starting and Stopping
startup, special handler	startup/shutdown
state handler, declaring	Simplest Configurations
`state-directory`	conf-base
`state-directory`	conf-calloutd-setup
`state-directory, --state-directory calloutd option, summary`	invocation-calloutd
`state-directory, --state-directory mailfromd option, summary`	General Settings
`state-directory, --state-directory mfdbtool option, summary`	Invoking mfdbtool
`statedir, --statedir, mtasim option, described`	interactive mode
`statedir, --statedir, mtasim option, summary`	option summary
statements	Statements
statements, conditional	Conditionals
`static`	Variables
`static`	Functions
`status.mfl`	Exceptions
`status.mfl`	Built-in Exceptions
`status.mfl`	dns_query
`status.mfl`, module	Exceptions
`stderr, --stderr calloutd option, summary`	invocation-calloutd
`stderr, --stderr mailfromd option, summary`	Logging and Debugging Options
`stdio, --stdio, mtasim option, summary`	option summary
`stdpoll`	Compatibility Callout functions
`StreamMaxLength`, `clamd.conf` parameter.	Predefined variables
`StreamMaxLength`, `clamd.conf` parameter.	ClamAV
`strftime`	System functions
`strftime`	System functions
strict address verification	SAV
strict verification with `poll`	Polling
`strictpoll`	Compatibility Callout functions
`string_list_iterate`	m4 macros
`strip_domain_part`	String manipulation
strip_domain_part, definition of	Some Useful Functions
`strip_domain_part.mfl`	String manipulation
`substr`	String manipulation
`substr`	String manipulation
`substring`	String manipulation
supplementary groups	Starting and Stopping
`switch`	Conditionals
`switch` statement	Conditionals
syntax check	Testing Filter Scripts
`syntax-check, --syntax-check mailfromd option, introduced`	Testing Filter Scripts
`syntax-check, --syntax-check mailfromd option, summary`	Logging and Debugging Options
`syslog`	Syslog Interface
syslog facility, default	Logging and Debugging
syslog facility, selecting	Logging and Debugging
syslog tag	Logging and Debugging
`syslog, --syslog calloutd option, summary`	invocation-calloutd
`syslog, --syslog mailfromd option, summary`	Logging and Debugging Options
syslog, asynchronous	Logging and Debugging
syslog, default implementation	Logging and Debugging
syslog, non-blocking	Building
syslog, non-blocking	Logging and Debugging
syslog, using for diagnostics output	Logging and Debugging
`syslog.mfl`	Syslog Interface
`system`	System functions
system-wide startup script	Starting and Stopping

T
tbf database	Database Formats
`tbf_rate`	Rate limiting functions
`tempfail`	Actions
tempfail action, defined	Actions
tempfail action, introduced	Start Up
`tempfail` in ‘`end`’	begin/end
`TEMPFAIL_ACTION`	action hook
`tempfile`	I/O functions
`test, --test mailfromd option, introduced`	Testing Filter Scripts
`test, --test mailfromd option, specifying handler name`	Testing Filter Scripts
`test, --test mailfromd option, summary`	Operation Modifiers
Texinfo	Conventions
`textdomain`	NLS Functions
Thomas Lynch	Acknowledgments
`throw`	Catch and Throw
`time`	System functions
time formats, for `--time-format` option	Time and Date Formats
Time Interval Specification	conf-types
`time-format, --time-format mfdbtool option, summary`	Invoking mfdbtool
`timeout`	protocol-calloutd
timeout escalation	SMTP Timeouts
`tls`	conf-callout
TLS support	conf-callout
`tolower`	String manipulation
`toupper`	String manipulation
`tr`	Character translation
trace file, `mtasim`	traces
`trace-actions`	conf-debug
`trace-file, --trace-file, mtasim option, described`	traces
`trace-file, --trace-file, mtasim option, summary`	option summary
`trace-program`	conf-debug
`trace-program, --trace-program mailfromd option, summary`	Logging and Debugging Options
`trace, --trace mailfromd option, introduced`	Logging and Debugging
`trace, --trace mailfromd option, summary`	Logging and Debugging Options
`transcript`	conf-debug
`transcript`	conf-calloutd-log
`transcript, --transcript calloutd option, summary`	invocation-calloutd
`transcript, --transcript mailfromd option, introduced`	Logging and Debugging
`transcript, --transcript mailfromd option, output example`	Logging and Debugging
`transcript, --transcript mailfromd option, summary`	Logging and Debugging Options
`try` statement	Catch and Throw
try–catch construct	Catch and Throw
trying several sender addresses	Compatibility Callout functions
`type`	pmult-client
type casts, explicit	Type casting
type casts, implicit	Type casting

U
U, -U option, described	Preprocessor Usage
U, -U option, summary	Preprocessor Options
`u, -u, mtasim option, summary`	option summary
U, `\U`, a `mtasim` command	interactive mode
`umask`	System functions
`uname`	System functions
`undefine, --undefine mailfromd option, described`	Preprocessor Usage
`undefine, --undefine mailfromd option, summary`	Preprocessor Options
`unescape`	String manipulation
`unescape`	String manipulation
`unfold`	Mail header functions
`unlink`	System functions
upgrading from 1.x to 2.x	1x-2x
upgrading from 2.x to 3.0.x	2x-30x
upgrading from 3.0.x to 3.1	30x-31x
upgrading from 3.1.x to 4.0	31x-400
Upgrading from 4.0 to 4.1	400-410
Upgrading from 4.1 to 4.2	410-420
Upgrading from 4.2 to 4.3.x	420-43x
Upgrading from 4.3.x to 4.4	43x-440
Upgrading from 4.4 to 5.0	440-500
Upgrading from 5.0 to 5.1	500-510
Upgrading from 5.x to 6.0	5x0-600
Upgrading from 6.0 to 7.0	600-700
Upgrading from 7.0 to 8.0	700-800
Upgrading from 8.13 to 8.14	8130-8140
Upgrading from 8.14 to 8.15	8140-8150
Upgrading from 8.17 to 9.0	8170-9000
Upgrading from 8.2 to 8.3	820-830
Upgrading from 8.2 to 8.4	820-830
Upgrading from 8.5 to 8.6	850-860
Upgrading from 8.7 to 8.8	870-880
Upgrading from 9.1 to 9.2	9100-9200
`url`	pmult-client
URL, mailer	Mail Sending Functions
`usage, --usage calloutd option, summary`	invocation-calloutd
`user`	conf-priv
user privileges	Starting and Stopping
`user, --user calloutd option, summary`	invocation-calloutd
`user, --user mailfromd option, summary`	General Settings
`user, --user, mtasim option, described`	interactive mode
`user, --user, mtasim option, summary`	option summary

V
`v, -v, mtasim option, summary`	option summary
`valid_domain`	Special test functions
valid_domain, definition	Some Useful Functions
`valid_domain.mfl`	Special test functions
`validuser`	Special test functions
vaptr	getopt
variable assignment	Using Variables
variable assignment	Variables
variable assignment	Assignments
variable declaration	Using Variables
variable declaration, implicit	Using Variables
variable declarations	Variables
variable interpretation	Literals
variable lexical scope	Variables
variable number of arguments	Functions
variable shadowing	Shadowing
variable values, setting from the command line	Testing Filter Scripts
`variable, --variable mailfromd option, introduced`	Testing Filter Scripts
`variable, --variable mailfromd option, summary`	General Settings
variable, assigning a value	Variables
variable, precious	rset
variables, accessing from `catch`	Catch and Throw
variables, automatic	Functions
variables, declaring	Variables
variables, defined	Variables
variables, introduced	Using Variables
variables, local	Functions
variables, precious	Variables
variables, predefined	Predefined variables
variables, referencing	Variables
variadic function	Functions
`verbose, --verbose, mtasim option, summary`	option summary
verbosity level	Logging and Debugging
`vercmp`	String manipulation
Verifying script syntax	Using MFL Mode
`verp_extract_user`	String manipulation
`version, --version calloutd option, summary`	invocation-calloutd
`void`	Type casting
`void`	Interface Module
void functions	Functions
`vrfy`	protocol-calloutd
VRFY, SMTP statement	conf-callout

W
`W_OK`	System functions
`when` keyword	Polling
`while`	Loops
while loop	Loops
whitelisting	Greylisting
`WITH_GEOIP2`	Geolocation functions
`WITH_GEOIP2`	Geolocation functions
`write`	I/O functions
`write_body`	I/O functions
`write-timeout`	pmult-client

X
`X_OK`	System functions
`X, -X, mtasim option, summary`	option summary
x, `transform` flag	String transformation
`XML`	Filters
`xref, --xref mailfromd option, summary`	Logging and Debugging Options

Z
Zeus Panchenko	Acknowledgments

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