Symptom:-


  • Outlook fails to sync emails.

  • Error message appears during the send/receive operation.

  • All configurations are correct.
  • No network or mail server issues found.


Steps to Check / Observations:-


  • Verify the location of the Outlook PST/OST file.

  • Check the storage space on the drive where the PST/OST file is stored.

  • If the drive is full, Outlook may fail to sync emails.


Solution:-

  • Free up space on drive:

    • Delete unnecessary files from Downloads, Desktop, Temp folders.

    • Empty Recycle Bin.

    • Move large non-essential files (videos, installers, archives) to another drive or external storage.

  • Restart Outlook after freeing space.

  • Verify if emails start syncing automatically.