procmail infos

Where can we find detailed documentation on procmail?
The man pages are rather insufficient and don't explain everything, I'm trying
to setup several autoresponders for the same account, I need to have several
aliases with a separate reply and each needs to go to a separate pop mailbox,
how can that work?

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Didier Godefroy
mailto:dg(_at_)ulysium(_dot_)net
http://web.ulysium.net