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Old 09-17-2011, 03:57 AM
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abcha0s abcha0s is offline
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I suspect the problem runs deeper.

The IP 96.31.76.198 is listed on three blacklists:

all.spamrats.com
noptr.spamrats.com
b.barracudacentral.org

I'm most familiar with barracuda. Many companies use Barracuda spam appliances to front end their mail servers. Our hosting provider for Conceptaquatics.ca seems to use spamrats.com - My guess is that it's part of a group of RBLs rather than programatically configured, but the end result is the same. We are not getting email notifications.

You can run a quick check here: http://www.barracudacentral.org/lookups/ip-reputation

I checked some of the other address in the 96.31.76.194/27 address space and many of them are listed on various RBLs. Some of them are listed on many. Fortunately, not all of them are listed.

96.31.76.221 seems to be clean. I stopped checking once I found one that was not listed. A quick fix would be to change the IP for outgoing mail to .221

- Brad
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