Ive resolved the issue after multiple tests.
I wanted to reinstall postfix but got error that mysql could not be stopped. I cant stopped mysql because the system has a lot requests, so this must be planned.
1. So we created an Backup with Plesk.
2. Login with SSH and root on our server
3...
Thanks for your fast answer,
This commands shows the same message like mchk :(
plesk repair mail
Error messages: 0; Warnings: 0; Errors resolved: 0
Ive seen this KB but if i do the solution stept 2 the .txt file is empty
Hello,
we have done a Plesk MU on our Plesk Ony 17.8.11. At first the phpmyadmin was not reachable and we cant access the mail settings with the UI. Ive tried to repari mail wit plesk repair mail but with no luck.
Then i tried with /usr/local/psa/admin/sbin/mchk --with-spam but again no luck...