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Procmail occurs as mail delivery agent (MDA) or mail filter, a program to run incoming emails in the computer, widely utilized on Unix systems. These are generally invoked from either an MTA like Sendmail;
this makes a mailprocessing event-caused. A companion-convienence formail
allows procmail to exist as utilized around load-processing in mail that already is in
your systems mailbox.
Most common operations carried out by having procmail include filtering & sorting of e-mail into different folders based on data from either keywords inside from, to, subject or even even text of the mail, or sending autoreplies, however extra sophisticated operations
come likewise imaginable.
The most common practice is to let procmail call for an external spam filter program, such as SpamAssassin.
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