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
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
So you get the best of both worlds, which seems an excellent reason to
go through the effort of setting it up that way.
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)
More information about the NANOG