> The last time I checked (and it was a long time ago), GMail rewrote either > the sender or the reply-to address with the one you use to authenticate the > connection. Again, it might not be true now, but it has happened to me in the > past.
Look to me that you should do some research before asking. simple google search "gmail relay email" and second link from the answer. https://support.google.com/a/answer/2956491?hl=en Start there and see where you want to go next. But please help yourself. Hopefully this will help you some. Best Daniel