How to fix error: 452 4.3.1 Insufficient system resources on Exchange Server 2007 or 2010

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1 Response

  1. This happens to me yesterday. This error happens because the lack of free space to make the succesfully delivery of the emails.
    So the resolution is:
    1 Check the Local space for the logs and for the edb (files on the exchange server)
    To meet this you can use this powershell script:
    Please do not modify exchange server edgetransport.exe.config files since it’s a bad practice, it’s just a workaround is not a solution.

    2. Enable circular logs on the Exchange server Databases and then “Unmount” and “Mount” them again. you will get your emails flowing really fast.

    3. I will recommend also using my script Gives you the location of those Database in the Filesystem (Path) you will need to create a backup (enabling the “VSS Full Backup” option in the VSS Settings tab) as showed here to clean up even more the logs space on the exchange DB (

    Jose Gabriel Ortega C
    MCSE/MCP Messaging /Server Administrator
    Top rated Upwork Freelancer

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