Plesk Qmail error – 451 qq internal bug (#4.3.0)

If you are getting error while sending email from your plesk server using outlook

To eliminate this problem, stop Qmail process and replace qmail-queue, qmail-local and qmail-remote with the qmail-queue.moved, qmail-local.moved and qmail-remote.moved accordingly:

If you face any problems replaising these files, you can stop thses processes forsible and then try to replace them:

Make sure that the permissions and ownersips are right:

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About shk

shk is a DevOps engineer with more than 12 years of experience in different organizations. He enthusiastic about learning new technologies and shares his knowledge through his blogs.

Comments

  1. Guys, you are the best
    I run a dedicated server, my sys admin and AT&T top IT were trying to figure why my mail when I shifted to AT&T Uverse was dead!
    I G and found you, applied the fix
    IT WORKS!
    Thanks
    Kind regards
    Henry

  2. This is excellent! How did you learn this stuff?

  3. Thank you thank you! I removed Parallels Premium Antivirus and could no longer send or recieve email, and rebuilding the qmail settings wasn’t helping. This worked perfectly!

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