No, all you need to do is admit that the mailing list server sent the
message that came from the mailing list server - so set that to be the
From/return-path.
Besides the semantic wrongness of this approach and the confusion
between envelope and header addresses, it has the severe practical
problem that the address of the actual author of the message no long
appears in a header, so there's no way to reply to her.
Before anyone suggests "fixing" this with reply-to, please review the
past 15 years or so of flamage about mailing lists and reply-to.
R's,
John
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