Answer
To disable GFI MailEssentials BitDefender Scanning Engine:- Log into the configuration page with a domain admin account; here are some options:
- On browser use <server_name>\MailEssentials
- Navigate to Start > All programs > GFI MailEssentials > MailEssentials Configuration
- Use "…\GFI\MailEssentials\MEC.ConfigurationShortcut.exe"
- Go to EmailSecurity > Virus Scanning Engines > BitDefender
- Under the General tab disable all checkboxes in the Options section (see screenshot).