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Exchange 2013 stops receiving mail. It was working…

A newly installed Exchange 2013 server was receiving mail and now it is not receiving mail.  No changes to the connectors and a reboot seems to fix the problem.  There seems to be some debate as to whether or not it is a bug related to the mail filter and / or the receive connectors fighting over port 25.  Either way, we can’t have it.

Two things should put a stop to this.

  1. Disable filter through Exchange Management Shell

    Set-MalwareFilteringServer -BypassFiltering $true

  2. Schedule a restart of the Exchange transport service every 2 hours.  I use a PowerShell script for this that (create a PS1 file).

    try { net stop MSExchangeTransport }
    catch { }
    finally {
    Start-Sleep -s 60
    net start MSExchangeTransport
    }

When you schedule the task:

  1. Run on startup
  2. Set to run every hour with 15 minute delay
  3. Run with highest privileges
  4. Command to run is “powershell” with the path to the PS1 script (I store mine in “C:\Scripts”)

Make sure you test it!  Hopefully you will continue to receive mail until there is a more permanent fix.

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2 responses to “Exchange 2013 stops receiving mail. It was working…

  1. King of Spades (@Aithunik) October 8, 2013 at 3:06 am

    I am experiencing the same problem.Did you get a permanent fix for this?

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