> You mention that the POSTMASTER account is necessary to
> service the e-mail infrastructure, but blocking policies may
> be used to balance everything out.
Frankly, based upon the spam I receive, it is unlikely that much would be
blocked. I think that *might* be reasonable to block spam to postmaster@
where the RCPT TO was for the postmaster, but the TO: headers don't
specifically reference the postmaster, and it impose a size limit.
In other words, IF you are determined by the shortcut filtering to be a
spammer, then we must still accept mail for postmaster@, but we can
terminate the connection after a single e-mail, and bounce the e-mail if it
doesn't meet requirements (with a notice of what those requirements are).
We've discussed this a bit in james-dev. I have not run that idea by anyone
associated with www.rfc-ignorant.org, but it appears to fit with their "we
wouldn't list folks if the rejection message for postmaster seemed to
indicate the reason for denial" comments.
--- Noel
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