On the way home I realized... all that was based on the envelope sender,
and they're checking the header From. I keep forgetting we're in some other
world where we're not checking the sender. Oh well, it's still nice to keep
my hand in doing sendmail.cf. It's been a while.
Maybe a compromise is to use MimeDefang to change all cases of:
From: Jane Doe <[email protected]>
into something like:
From: Jane Doe [email protected] <[email protected]>
and set an alias at [email protected] that bounces an error. This
conforms, sort of, to RFC 5322 in that the From line still shows the
mailbox of the author of the message.
I'm still thinking about it. And yes I do have some other urgent work to do
besides this nonsense.
Joseph Brennan
Columbia University I T
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