The configurable mailer can be useful for wrapping e.g. sendmail and preprocessing the e-mails before sending them to the user. The preprocessing can be for example some kind of ditching or aggregation of emails.
Change control: stable
Synopsis: server attribute
Details: The attribute can be set only by the manager or administrator. The attribute is a string. The value should be a path to a mailer. The default value is macro SENDMAIL_CMD.
The mailer itself is supposed to work similarly as the sendmail (but simplified):
to read the body from the stdin
to accept “-f $from” as a parameter
to accept an email address as the last parameter.
Example: set server mailer = “/usr/bin/pbs_mail_preprocessing”