Scanning outbound emails

Step-by-step information on what happens to an email that goes out of the organization and how TSME scans it, to determine if the email is clean or infected.

The end-user sends an email to an external user, using the email client.
Exchange store receives the email and scans it in the Outbox folder.
If there is detection, it is replaced or deleted as per the product configuration and if replaced it is submitted to Transport queue.
SMTP stack hosted by EdgeTransport.exe on MBX roles, receives the email.
TSME Transport Agent (McAfeeTxRoutingAgent) scans the email for File filtering, Content scanning, Anti-Virus scanning, URL reputation, and also disclaimer addition.
If there is detection, it is dropped or replaced and appropriately returned to the SMTP stack.
If the email is clean, it is returned to SMTP stack for further routing.
Now the email is returned to SMTP stack, hosted by EdgeTransport.exe on Edge server role for further routing.