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AFAICT procmail only gets invoked when you have a valid recipient. How do I make addresses that match a regular expression be valid from the MTA's point of view? The script (procmail or not) would decide which ones to bounce.


For that you'll probably need to hack the sendmail.cf file. I suspect it's probably easiest if you can use the "plussed user" feature - http://www.cs.ait.ac.th/~on/O/oreilly/tcpip/sendmail/ch24_04...




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