To repair Plesk mailbox configuration or reset them to the default settings in a Windows server, you can use 'mchk' utility.
Syntax : C:\>"%plesk_bin%\mchk [options]
OPTIONS:
--help
--all [--fix=all|local]
--domain --domain-name= [--fix=local]
--domains --domain-names=| [--via-file] [--fix=local]
--all-domains [--fix=local]
--global-settings
Example:
C:\>"%plesk_bin%\mchk" --all-domains
