bounce error : message has lines too long for transport

Question

Hi

I am using outlook 2021, recently many of my emails rejected, and I am getting the below massage regardless to whom i sending to (some pass without any issue)

Quote

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:

  **information removed due to privacy policy**

    message has lines too long for transport

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report shows

Quote

X-Mailer: Microsoft Outlook 16.0

Thread-Index: **information removed due to privacy policy**

Content-Language: ar-jo

X-Exim-DSN-Information: Due to administrative limits only headers are returned

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Answer 1

Hi,

I followed the steps by changing the Wrap Characters from 65 to to max 132; however, the problem still exists and the email are returned with this msg "message has lines too long for transport".

I never had this problem in the past and it has come up since yesterday only unexpectedly.

Pls help.

If your case is like mine, I had to contact our e-mail provider and have them resolve this issue on their end.

The outlook wrap characters only dealt with the email body, not the body header.

Answer 2

Morning

I am still getting the error.

Regards

Nelson Bapela

From Subject Received Size Categories

Mail Delivery System Mail delivery failed: returning message to sender 8:11 AM 13 KB

From Subject Received Size Categories Mail Delivery System Mail delivery failed: returning message to sender 8:09 AM 13 KB

Answer 3

Hi, are you sure it is related to the CPanel? We don't have this issue in past, but just recently there is an office /window update, in around 1-2 weeks ago, then the problem keep happen now!

Can you double check if there is any error in your update?

Answer 4

@Syedur,

From what we have seen this issue is caused by a CPanel related change. Please contact your hosting provider and ask them to disable this change.

Reference from above by Jason:

https://support.cpanel.net/hc/en-us/articles/4420121088919-Exim-4-95-message-has-lines-too-long-for-transport-Error https://forums.cpanel.net/threads/problem-cpanel-39824-message-has-lines-too-long-for-transport-since-january-21-2022.697449/

Answer 5

Dear Ankita,

I tried as per your instruction but the problem not solved.

Can you pls advise any alternative solution?

Thanks & Regards,

Syedur