GSuite to Other (as Back up)

Post date: Oct 08, 2018 5:15:18 PM

Suite -> Gmail -> Adv Settings -> General Settings -> Recipient Address Map -> Edit

All Incoming Messages

Also Route to Original (True)

Add X-Gm-Original-To Header (Yes)

Note: Name@Domain.x, Name@Domain.y Then Click Add.

https://support.google.com/a/answer/4524505?hl=en