On Thu, 8 Oct 1998, Vaudreuil, Greg M (Greg) wrote:
From RFC 822:
In all cases, addresses in the "From" field
must be machine-usable (addr-specs) and may not contain named
lists (groups).
What do you suggest a system which has no identifiable sender put in the
"from" field? Bogus(_at_)bogus?
My reading of 822 (4.4.2) is far less clear, but my reading suggests group
notations would be inappropriate there as well since they should identify
the singular sender of a message when it is other than the sender.
You're correct, the From address has to be a "mailbox", rather than an
"address" so it can't be an empty group.
I actually have no problem with the use of <non-mail-user(_at_)domain> in the
From address. But I have a big problem with probiting replies to that
address. I don't have a problem with prohibiting replies to a message
with an empty group address in the Reply-To header.
- Chris