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    Dropping outgoing SMTP connections… why?

    Scheduled Pinned Locked Moved General pfSense Questions
    5 Posts 3 Posters 1.2k Views
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    • P Offline
      pedreter
      last edited by

      Hello everybody!

      i have 2 pfsense 2.1.5 boxes in HA with CARP and i have noticed than quite oftenly my smtp outgoing connections get dropped!

      i use postfix and i usually get postfix errors like "unknown mail transport error" and emails go to deferred queue. if i flush the queue manually, mails go out
      with no problems…

      i am 99% susre it is a pfesne issue since this do not happen with other servers i have that do not go trough pfsense!

      in LAN rules i do not have any connections limit anywhere... and when i check the virusprot list when the problem is in progress, the list is always empty!

      i have no snort installed.

      any idea on how to troubleshoot this dropped connections?

      apart from viruslist-connection_limits ... is there any other thing to check out to prevent connection dropping''?????

      Thanks in advance!

      Pedreter.

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      • jimpJ Offline
        jimp Rebel Alliance Developer Netgate
        last edited by

        Check your system logs, make sure your VIPs are not flapping back and forth. If they are fighting over MASTER status for whatever reason (usually an L2 issue), it could cause that sort of behavior.

        Remember: Upvote with the 👍 button for any user/post you find to be helpful, informative, or deserving of recognition!

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        • P Offline
          pedreter
          last edited by

          Hi Jimp!! and thanks for your reply…

          it makes sense!!! i am going to check it out right now...

          Thanks again!

          Pedreter.

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          • P Offline
            pedreter
            last edited by

            i am back !!!  with no luck…

            Jimp, neither errors  nor VIPs dancing...  :(

            Any further suggestion, please???

            Thanks again in advance!

            Pedro.

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            • B Offline
              Boondocks
              last edited by

              Any suggestions? I am having the same problem. Once before it corrected when I reboot pfSense. But not this time.

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