Symptoms
MailEnable webmail gives error “HTTP Error 503 Service Unavailable”.
Resolution
The issue can be fixed by doing the following steps:
- Run Mail Enable installer:
"%plesk_dir%\Mail Servers\Mail Enable\Bin\MEInstaller.exe"
- Select the second option – “WebMail Installation / Reconfiguration (…)”
- Give a random password for the MailEnable service accounts.