On Mon, 4 Mar 1996, Jonathon Blake wrote:
A potential problem I see is that in mailers such as Pegasus Mail, users
are allowed to change the mail id that appears in their "from" header. If
the vandal is aware of this, he/she can make it appear that the subscribe
request is coming from the actual subscibee. I don't see any way around
that potential problem.
Unfortunately t his particular problem is fundamental to the way that
SMTP works. So we cope.
Anyway, we've left the discussion of procmail.
About the best solution I have is to not use -t in auto-reply
recipes. But I can change my Return-Path, Sender, etc headers at