Duncan, You may have to wait for sometime for your domain/IP to be trusted again and allowed to send mail to google- see link below. However, as a best practice, also ensure that you have restricted all smtp traffic to/from your mail server only on your border router/firewall via access lists. https://mail.google.com/support/bin/answer.py?answer=17205#Problem Rgds, Brenda ________________________________ From: kimondo Duncan <kimondodk@gmail.com> To: Skunkworks Forum <skunkworks@lists.my.co.ke> Sent: Monday, June 13, 2011 2:33 PM Subject: [Skunkworks] Mail Server Blocked by google Mail Servers Skunks, I have a mail server blacklisted by google mail servers. I have cleaned the network, removed the Ip address from blacklist sites. I have googled but nothing worthwhile is coming up. Anybody who knows a way through this. Error Message: Reporting-MTA: dns; mail.myserver.com X-Postfix-Queue-ID: C52F4D80E06 X-Postfix-Sender: rfc822; me@myserver.com Arrival-Date: Mon, 13 Jun 2011 12:21:47 +0300 (EAT) Final-Recipient: rfc822; skunkworks@gmail.com Original-Recipient: rfc822;skunkworks@gmail.com Action: failed Status: 5.7.1 Remote-MTA: dns; gmail-smtp-in.l.google.com Diagnostic-Code: smtp; 550-5.7.1 [**.**.***.* 1] Our system has detected an unusual rate of 550-5.7.1 unsolicited mail originating from your IP address. To protect our 550-5.7.1 users from spam, mail sent from your IP address has been blocked. 550-5.7.1 Please visit http://www.google.com/mail/help/bulk_mail.html to review 550 5.7.1 our Bulk Email Senders Guidelines. x55si15141929eef.73 Duncan _______________________________________________ Skunkworks mailing list Skunkworks@lists.my.co.ke http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks ------------ Skunkworks Rules http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 ------------ Other services @ http://my.co.ke