Sendmail, 3rd Edition

Name

FEATURE(local_procmail)

Synopsis

The procmail(1) program can handle a user’s mail autonomously (for example, sorting incoming mail into folders based on subject) and can function as a sendmail delivery agent. Some administrators prefer procmail(1) in this latter role over normal Unix delivery agents. If this is your preference, you can easily use procmail(1) in that role with the local_procmail feature:

FEATURE(`local_procmail')

The local_procmail feature changes the P=, F=, and A= equates for the local delivery agent into:

P=/usr/local/bin/procmail              ← see P= 
F=SPfhn9                               ← see F= 
A=procmail -Y -a $h -d $u              ← see A=

If you have installed procmail in a different location, you can specify that alternative location with a second argument:

FEATURE(`local_procmail', `/admin/mail/bin/procmail')

Beginning with V8.10, sendmail allows this local_procmail feature to accept additional arguments to define the A= values (set with LOCAL_MAILER_ARGS; See this section), and the F= values (set with LOCAL_MAILER_FLAGS; See this section). Those additional arguments were added to support other programs in addition to procmail(1), such as maildrop(1) and scanmails(1).^[6] They are used like this:

FEATURE(`local_procmail', `/admin/mail/bin/procmail', `A= stuff here', `F= stuff here' )

If you need to specify command-line arguments different from the defaults shown earlier, you can do so either with the second argument (the A= stuff here), or by using the LOCAL_MAILER_ARGS (See this section) mc macro:

FEATURE(`local_procmail') ...