Understanding EMP Cloud Mail Flow

To better understand the path each message follows, and what events may be triggered at specific points during the process.

Email through the platform is processed step by step.

EMP Cloud Mail Flow

Messages processed through EMP Cloud go through various stages in a particular order which is outlined below for both inbound and outbound.

Inbound Mail Flow

• EDR – EMP Dynamic Reputation.
• Attachment Defense (if licensed).
• Anti-Virus scanning.
• Filters: Custom filters and send lists.
• Executables such as .exe, .dll, .bat, .js, and others are blocked before custom filters.

NOTE: Any filter that triggers with Quarantine or Allow will skip the Anti-Spam step of processing.

• Anti-Spam.
• URL Defense Scan and Rewrites (if licensed).

Outbound Mail Flow

• Attachment Defense (if licensed).
• Anti-Virus scanning.
• Filters: Custom filters and send lists
• Executables such as .exe, .dll, .bat, .js, and others are blocked before custom filters.

NOTE: Any filter that triggers with Quarantine or Allow will skip the Anti-Spam step of processing.

• Anti-Spam.