procmail

Autonomous mail processor for filtering, sorting, and processing emails

brewmacoslinux

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Autonomous mail processor

procmailformail

Filter emails matching a pattern into a specific mailbox$ procmail -f From: <<< "email content" < ~/.procmailrc

Extract and process headers from an email message$ formail -X From: -X Subject: < /path/to/email

Create a recipe to automatically sort mailing list emails

$ echo ':0:
* ^From.*list@example.com
mylist/' >> ~/.procmailrc