Dramatic increase in "connected host has failed to respond"
Question asked by Craig Lintott - October 20, 2014 at 2:42 AM
Hi Guys
I have noticed a dramatic increase in email delivery from my SM12 server with an error of "A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond"
I am getting these errors from a variaty of destination servers.
Any ideas where i can look to try find the cause of this?

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Can you provide examples?
Can you post the domains which are having problems and the domains they are attempting to connect to?
Have you sent an e-mail to mailtest@unlocktheinbox.com, from one of the problem domains, and checked the results of the message?
Bruce Barnes
ChicagoNetTech Inc

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E-Mail and DNS Security Specialist
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