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SMTP data timeout after cPanel upgrade

Discussion in 'E-mail Discussions' started by tmurdock, Oct 26, 2015.

  1. tmurdock

    tmurdock Member

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    Since the update to to 11.52 Build 18, I've been unable to receive emails from certain servers. The message times out with an error of :

    2015-10-26 09:22:26 SMTP data timeout (message abandoned) on connection from ********.*******.com [***.***.***.***]:56423 F=<********@***********.com>

    I get them from multiple different senders, and the email never seems to bounce, instead continually retrying to send the same mesage.
     
  2. tmurdock

    tmurdock Member

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    Just an update, I was able to solve this by lowering my MTU. I'm not sure exactly what the problem was in the first place, but after changing it, email came flooding into my server.
     
  3. cPanelMichael

    cPanelMichael Forums Analyst
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