Outbound email through the Symantec Messaging Gateway is rejected with the error, "All recipients are invalid, Rejected message for nonlocal recipient".

The Message Audit Logs contain the following error: "All recipients are invalid, Rejected message for nonlocal recipient"

If the Messaging Gateway scanner is configured with one IP for Inbound and a different IP for Outbound, verify that the internal mail servers are sending outbound mail to the Outbound interface of the scanner.

If the Messaging Gateway scanner is configured with one IP for Inbound and Outbound, ensure that the internal mail servers are listed as permitted senders.

Verify the following:

• The internal mail server is configured to send to the appropriate outbound interface of Messaging Gateway set in
  • Administration > Configuration > hostname > SMTP > Outbound > Outbound mail IP address
• The Messaging Gateway scanner is configured to allow the internal mail server to relay mail outbound.
  • Administration > Configuration > hostname > SMTP > Outbound > Outbound Mail Acceptance