Interpreting a blacklist error message
Posted on 2009-03-30
I have 4 users who have received the same e-mail from a person at wellsfargo.com. All four of these people have e-mail account on our server. Two of the four get their e-mail forwarded to their roadrunner account and the other two just keep their mail on our server.
The two that the wellsfargo person is mailing that are getting their mails forwarded to @carolina.rr.com accounts get the following bounceback.
FWD, Agents Name on 3/28/2009 11:02 AM
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<DMAMAIL.dm.local #5.5.0 smtp;550 Sender Personatwellsfargo@wellsfargo.com is blacklisted>
I've been on the line with Roadrunner tech support and I pulled all the server IP's listed in a MX record nslookup and checked each with Spamhause as well as had the tech support check them. They are all coming back as not blocked?
Am I reading this wrong? Is something other than the Roadrunner mail server generating that blacklist message? We don't use a blacklist service ourselves.
I should also mention we employ a spam filtering service called electricmail.com and I've talked with them and they assure us that they do not have the wellsfargo person blacklisted and that it's not their server doing it anyway since it's a forward it's going directly to the RR servers.
Any help or advice please?