> what, if anything, should an ISP do when get a bunch of relay-attempts
> from some other ISP? Of course, they're all 'relaying denied' but it
> feels like sort of a poor-man's stupid mini-DoS attack.
[..]
> Any suggestions?
Have you checked the MX records for those domains? (Maybe the
mailservers of those other ISPs just act according to some broken MX
records?)
Greetings, Norbert.
--
A member of FreeDevelopers and the DotGNU Steering Committee: dotgnu.org
Norbert Bollow, Weidlistr.18, CH-8624 Gruet (near Zurich, Switzerland)
Tel +41 1 972 20 59 Fax +41 1 972 20 69 http://thinkcoach.com
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