The 'f' flag, which says to treat the program as a filter - thus, procmail
is taking the output of the program and making that the new message
content. Think of a filter just like a camera lens filter -- something
goes in, and it passes something else out. Nevermind that the thing
providing the data is the same thing using the data at the back end.
Hi Sean, thanks for your answer.
Does the program called with the -f flag have to put the
'filtered copy' out on STDOUT for procmail to pick it up again?
Homer
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