Wydawca
	Release Submission Daemon	Sergey Poznyakoff

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4.15.3.1 Mailer

To send messages, mod_mailutils uses a special logical entity called a mailer. It is set in the module-init block using the mailer keyword.

mod_mailutils: mailer url

Set mailer URL.

A mailer URL consists of a scheme specification, followed by ‘://’ separator and additional data. The URLs supported by Wydawca version 4.0.3 are described in the table below. As usual, square brackets indicate optional parts:

smtp://host[:port]

Use an SMTP server on host to relay messages. The host part is either an IP address in dotted-quad notation or as a symbolic host name. In the latter case, DNS system is be used to resolve it. Optional port specifies port number or symbolic name (as defined in /etc/services). It defaults to 25. For example:

mailer smtp://remote.server.net:24;

sendmail://progname

Use sendmail-compatible program progname. Sendmail-compatible means that the program must be able to read an RFC-822 message from its standard input and must support the following command line options:

-oi

Do not treat ‘.’ as message terminator.

-f addr

Use addr as the sender address.

-t

Get recipient addresses from the message.

Example:

mailer sendmail:///usr/sbin/exim;

sendmail:

This is a special form of the ‘sendmail’ mailer. It uses the sendmail binary from the _PATH_SENDMAIL macro in your /usr/include/paths.h. It is the default mailer.

prog://progname?query

A prog mailer. This is a generalization of ‘sendmail’ mailer that allows to use arbitrary external programs as mailers.

The full file name of the program is given in progname part. The query part is a list of arguments, separated by ‘&’ signs. Arguments may contain the following macro-substitutions:

‘${sender}’

Expands to the sender email address.

‘${rcpt}’

Expands to the recipient email addresses.

The program progname must read an RFC-822 message from its standard input.

An example of ‘prog’ mailer definition:

mailer "prog:///bin/nullmail?localhost&-F${sender}&${rcpt}

When sending a mail, wydawca will invoke:

/bin/nullmail localhost -Fsender rcpt

where sender means the sender address, and rcpt stands for the recipient email address.

‘| prog args..’

Equivalent to the ‘prog’ mailer, described above, but written in a more natural fashion. In this notation, the example definition above becomes:

mailer "|/bin/nullmail localhost -F${sender} ${rcpt}"