Cameron Laird's Personal Notes on Procmail
- Discusses positive uses.
- http://phaseit.net/claird/comp.mail.misc/procmail.html

Automatic PGP Key Retrieval in Procmail
- Use procmail to automatically extract PGP keys from incoming mail messages.
- http://www.homeport.org/~adam/akr.html

ii.com: Processing Mail with Procmail
- Procmail description and links to procmail program, documentation, and discussion groups.
- http://www.ii.com/internet/robots/procmail/

Mailagent ftp directory (Perl/Unix)
- Contains the mailagent package itself. This is a Unix mail filter (a la filter, vacation, or procmail) written in Perl. Last updated sometime in 1997 ...
- ftp://ftp.foretune.co.jp/pub/network/mail/mailagent/

junkfilter
- A procmail-based filter system for bulk, unsolicited e-mail.
- http://junkfilter.zer0.org/

Procmail and PGP
- Instructions for installing and configuring procmail and PGP for mail encryption and decryption..
- http://www.roble.com/docs/pgpmailgateway.html

Procmail recipe generator
- Tk-RED is a procmail recipe generator. It uses a custom language Reciproc. It exports this language to a procmailrc file. Tk-RED is a graphical editor for writing recipes.
- http://www.naskita.com/linux/tk-red/tk-red.shtml

Timo's Procmail Tips And Recipes
- A collection of useful tips on using Procmail.
- http://www.uwasa.fi/~ts/info/proctips.html

ii.com: Procmail Quick Start
- This article will quickly get you up and running with Procmail. By Nancy McGough, of Filtering FAQ fame. (Contents are partially the same as in the Filtering Mail FAQ, too.)
- http://www.ii.com/internet/robots/procmail/qs/

Procmail Quick Reference Guide
- A quick reference to Procmail's recipe syntax.
- http://www.iki.fi/era/procmail/quickref.html

Filtering Mail FAQ
- A general introduction to mail filtering on Unix, with information about Procmail, filter, and mailfilter. (Slightly old and apparently no longer maintained, but still an excellent introduction.)
- http://www.faqs.org/faqs/mail/filtering-faq/

Procmail FTP Site
- Mirror site for downloading Procmail; used to be the primary master site so is likely to be reasonably up to date if ftp.procmail.org is down
- ftp://ftp.informatik.rwth-aachen.de/pub/packages/procmail/

Procmail FAQ (cover page)
- Contains the FAQ, a links collection, and Quickref
- http://www.iki.fi/era/procmail/

Procmail Mailing List Archive
- Searchable MHonArc archive of the Procmail mailing list -- goes back to 1995
- http://www.xray.mpe.mpg.de/mailing-lists/procmail/

Procmail
- Official distribution site for Procmail.
- http://www.procmail.org/