They aren't "legit" emails.
The auther of the emails form your server can be anything.

You need to set your server email to something like name@yourdomain.com
Exel Reviewed by Exel on . Gmail marking mail as spam. Gmail decides to mark my server mail as spam even though, I am not on any blacklists, my SPF records PASS, and my domain key is GOOD. Does anybody have an idea why Gmail would be marking my mail as spam? Rating: 5