[AusNOG] qld transport contact

[Chris Scholfield]

SPF is keeping them at bay with us as well thank goodness. The problem we
had first started when some users were complaining they couldn't send email.
Turned out it was because these external IP's were establishing so many
connections it maxed out the limit we had set on the email server.

I've been looking into either blocking or allowing certain countries IP
addresses on the router for the mail server to prevent these attacks from
reaching the mail server to begin with.  Everyone I have spoken to so far
has said it could possibly be done, but they've never tried it.

Anyone had any experience in doing this?  If so, how'd it turn out?

Chris Scholfield

-----Original Message-----
From: ausnog-bounces at lists.ausnog.net
[mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Peter J. Cherny
Sent: Thursday, 13 December 2012 2:29 PM
To: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] qld transport contact

I've got 425 unique ip addresses from a few thousand msgs if anyone needs
them, but SPF et al stops them dead.
_______________________________________________
AusNOG mailing list
AusNOG at lists.ausnog.net
http://lists.ausnog.net/mailman/listinfo/ausnog