I need a solution
Hi.
Over the weekend, our ISP had issues with reverse DNS lookups and we suffered several instances of IP Blacklisting of our SMTP servers as a result. Our IP addresses are below which reverse DNS back correctly now - please can you check the MessageLabs configuration to remove the IPs from any blacklists:
213.212.116.132
213.212.116.133
213.212.114.132
Jun 12 10:45:45 <**supressed**> sendmail[8315]: v5C9jaBJ008315: to=<**supressed**>, delay=00:00:09, xdelay=00:00:09, mailer=esmtp, pri=40557, relay=cluster3a.eu.messagelabs.com. [216.82.251.230], dsn=4.0.0, stat=Deferred: 421 Service Temporarily Unavailable
Thanks
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