As of April 2022, some users have reported to receive bounce messages that read Message has lines too long for transport. 

This is a known issue with latest update of cPanel systems, a work around of which was published here by cPanel. 

This issue only impacts users using Outlook, which has a specific setting called "Automatically wrap long lines in Outlook" that needs to be setup correctly.

If you are one of the affected users, please follow the steps below:

  1. Open Outlook
  2. Go to File Menu



  3. Select Options
  4. Within Outlook Options, select Mail.



  5. Scroll down to Message format
  6. In Automatically wrap text at character, enter a number to indicate where you want Outlook to wrap text. Keep this between 65 and 70 characters.



  7. Select OK to apply the changes and close the window.

 

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