Ronald F Guilmette <[EMAIL PROTECTED]> writes: > If you try to differentiate mail message into two piles, just based on > whtehre the envelope sender was null or not, then in one pile... the > null envelope sender pile... you will have a lot of bounce messages, but > also a fair amount of spam, and also quite a few auto-responses from > badly implemented autoresponders.
And all replies from one particularly piece of list management software whose authors have their own very... idiosyncratic interpretations of the mail RFCs. -- Russ Allbery ([EMAIL PROTECTED]) <http://www.eyrie.org/~eagle/>
