q. Help. I've just installed/repaired Procmail. It's filtering incoming mail correctly but how can I run it on an established mailbox/maildir?

a. Try: cat * | formail -s procmail inside the maildir if you are using one. Or if you use mailbox (mbox) format use: formail -s procmail < path/mbox.

Personally I've found this takes forever (give or take a few minutes). The process possibly runs at a low priority. If there is a way to speed it up, then let me know.

Labels: file manipulation, mail