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

If you are getting error while sending email from your plesk server using outlook [crayon-6517e8ca3f110973491114/] 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: [crayon-6517e8ca3f113248916245/] If you face any problems replaising these files, you can stop … [Read more...]