Mail Sending Problem

sajithgsm

• March 28, 2022 02:23

Hi, Sometimes this message is getting in "Track Delivery". "message has lines too long for transport" And it's failing. Do you have any idea what is that?

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  andrew.n

  • March 28, 2022 07:36

  This is a bug with emails sent from Outlook. A fix has been published to cPanel version 102.0.2.

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  Sanal Varghese

  • March 28, 2022 07:37

  Hi sajithgsm, Headers or other lines in the email may be longer than the character limit which triggers this error. The issue may be related to sending emails via Outlook. A fix has been published to cPanel version 102.0.2. Thanks. Regards, Sanal Varghese

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  victso

  • March 29, 2022 01:59

  It appears users moving from v100 to v102.0.8 once again seeing that under certain circumstances outbound email bounces with an error similar to the following: "1nBxPK-0023Ax-M1 ** user@remotedomain.tld R=dkim_lookuphost T=dkim_remote_smtp: message has lines too long for transport" Cpanel's team opened an internal case for their development team to investigate this further. For reference, the case number is CPANEL-40305. Follow this article to receive an email notification when a solution is published in the product. >>Workaround<< None at this time

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  cPRex Jurassic Moderator

  • March 29, 2022 18:55

  There's been a few threads on this so I didn't see this one to mention the update. If you're still seeing the issue, you can adjust that value in WHM >> Exim Configuration editor under the " Maximum line length for SMTP transports (Minimum: 1; Maximum: 65,536)" option.

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