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12.5 Summary of the mtasim Administrative Commands

This section provides a summary of administrative commands available in mtasim.

mtasim command: \D name=value [name=value...]

Defines Sendmail macro name to the given value. Any number of name=value pairs can be given as arguments.

See D command.

mtasim command: \E code

Instructs mtasim to expect next SMTP command to return given code (a three-digit decimal number).

See expect commands.

mtasim command: \L [name...]

Lists defined macros. See L command.

mtasim command: \U name [name...]

Undefines macros given as its arguments.

mtasim command: \S family [hostname address [port]]

Declares the sender socket parameters. See S command, for a detailed description and examples.

This command is available only at the initial stage of a mtasim session, before the first SMTP command was given. It is disabled if the --sender-socket option was given in the command line (see sender-socket). The help output reflects whether or not this command is available.

If neither this command nor the --sender-socket option were given, mtasim behaves as if given the \S stdio command.

The family argument supplies the socket family, i.e. the first argument to the connect handler (see connect handler). It can have either literal or numeric value, as described in the table below:

LiteralNumericMeaning
stdio0Standard input/output (the MTA is run with -bs option)
unix1UNIX socket
inet2IPv4 protocol
inet63IPv6 protocol

Table 12.1: Socket families

See also Table 4.3.

Depending on the family, the rest of arguments supply additional parameters:

stdio

The hostname argument can be specified. It defines the first argument of the connect handler (see hostname in connect handler).

inet
inet6

All arguments must be specified.

argumentconnect argumentmeaning
hostname1Sender host name
address4Sender IP address
port3Sender port number
unix

Hostname and address must be supplied. The address argument must be a full pathname of the UNIX socket.

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