On Thu, Apr 24, 2003 at 03:38:02PM -0400, Doug Essinger-Hileman wrote:
Most Message-ID fields I have examined from known legitmate senders
reference the sender's email address or domain. Is it permissible for
the Message-ID field to reference the receiver's address or domain?
Permissible? Yes. See RFC 2822. In practice, it is a frequent
moniker of spam, but also of traditional, desired bulk email.
Personally, I cull out lists and bulk mail I've subscribed to,
and whitelists, then have in my spamtest arsenal a test for
the perp's having used my upstream provider in the Message-ID.
It's a very nice test.
--
dman
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