far Posted January 4, 2012 Share Posted January 4, 2012 Hi All We are emailing clients from the NHS and we are getting the following, there is some confusion as to whether WE have been blocked or if its the recipient as our IP doesnt appear below but the recipients does, any ideas guys? This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. The following addresses failed: SMTP error from remote server in greeting: host mail.nhs.uk[62.208.144.158]: 550 5.7.1 Service unavailable; Client host [212.227.17.8] blocked using Trend Micro RBL+. Please see http://www.mail-abuse.com/cgi-bin/lookup?ip_address=212.227.17.8; Mail from 212.227.17.8 blocked using Trend Micro Email Reputation database. Please see Quote Link to comment Share on other sites More sharing options...
Purity14 Posted January 4, 2012 Share Posted January 4, 2012 Sounds like the ip address of your mail server has been blocked from their end. Quote Link to comment Share on other sites More sharing options...
far Posted January 4, 2012 Author Share Posted January 4, 2012 but the ip address shown is not our IP address and it seems to be suggesting that the server is blocking that IP which is where the confusion is coming from Quote Link to comment Share on other sites More sharing options...
Purity14 Posted January 4, 2012 Share Posted January 4, 2012 Whats the IP address of your mail server? Do you host your own mail server? Quote Link to comment Share on other sites More sharing options...
RobUK Posted January 4, 2012 Share Posted January 4, 2012 Might be useful if you could post or pm the recipient email or domain... I am guessing it's not the nhs mail server Quote Link to comment Share on other sites More sharing options...
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