Same Problem here with Plesk-Migrator from Centos-7 to Almalinux-9
Failed to perform an action on subscription '<domain>': Failed to copy content of database '<dbname>' Exception message: Migration tools tried to perform operation in 3 attempts: Command execution failed on the source server...
I get zombie processes every hour.
May 7 09:21:23 <server> crond: sendmail: fatal: <user1>(<uid1>): No recipient addresses found in message header
May 7 09:21:23 <server> crond: plesk sendmail[31400]: sendmail unsuccessfully finished with exitcode 75
May 7 09:21:23 <server> crond: sendmail...