AnswerBelow is the order that is used to check emails by the GFI MailEssentials EmailSecurity plugins.
GFI MailEssentials version
- Email Logging
- Anti-Spam Filters (operates at SMTP protocol level (Greylist, Directory harvesting, IP blocklist, IP DNS Blocklist)
- Decompression Engine
- Virus Scanning Engine
- Trojan Scanner
- Email Exploit Detector
- HTML Script Removal
- Attachment Checking
- Content Checking
- Anti Spam Filters (by Filter Priority)
- This processing order cannot be changed.
- The Virus Scanning Engines, the Attachment Checking Rules and the Content Checking rules can have their own rule priority which can be changed.