nanog mailing list archives

Re: Spamhaus...


From: "Matthew Black" <black () csulb edu>
Date: Wed, 17 Feb 2010 15:51:55 -0800

On Wed, 17 Feb 2010 17:32:51 -0500
 "Laczo, Louis" <Louis.Laczo () PaeTec com> wrote:
Folks,

I'm looking for comments / suggestions / opinions from any providers that have been contacted by spamhaus about excessive queries originating from their DNS resolvers, typically, as a proxy for customers. I know that certain large DNS providers (i.e. google and level3) have either been banned or have voluntarily blocked spamhaus queries by their resolvers. We're currently in discussion with spamhaus and I wanted to see how others may have handled this.

Thanks!
--Lou


When we licensed Spamhaus a few years back, they required us to set-up a DNS slave server instead of querying against their public server. They had a special DNS client that allowed partial zone updates. Turns out we downloaded huge hourly updates.

We no longer use Spamhaus, relying instead upon Sender Base Reputation Scores (IronPort).

matthew black
e-mail postmaster
california state university, long beach


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