Mail Server best practices - was: Pandora's Box of new TLDs
Jay R. Ashworth
jra at baylink.com
Tue Jul 1 15:04:31 UTC 2008
On Sun, Jun 29, 2008 at 07:55:07AM -0700, Roger Marquis wrote:
> Backscatter / NDNs are another issue. In practice they are no longer
> feasible without assurance that the sender is both valid and legitimate.
> Bounces without these validations are usually spam and will get your server
> blacklisted.
A fine point that I don't see mentioned much is that REJECT-ON-SMTP-DATA
has the nice side effect that if it's real mail, the *sender's* MTA will
generate their bounce for them, and if it's a spammer, they'll ignore
it.
So you get the best of both worlds, which seems an excellent reason to
go through the effort of setting it up that way.
Cheers,
- jra
--
Jay R. Ashworth Baylink jra at baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://baylink.pitas.com '87 e24
St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274
Those who cast the vote decide nothing.
Those who count the vote decide everything.
-- (Joseph Stalin)
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