"He is using Gmail as a backend to his own mail setup"
No, he is using a normal forward for those who want to receive their mail at gmail. He is not using gmail as his backend. You should read the original article.
No, he is using a normal forward for those who want to receive their mail at gmail. He is not using gmail as his backend. You should read the original article.
I run my own mail server, but most of my employees use Gmail. So I have forwarding set up: employee@dnalounge.com simply forwards to employee@gmail.com. When sending mail using their Gmail account, they set their From line to employee@dnalounge.com. (Google lets you do this if you jump through some hoops to verify that you can actually receive mail at that account.)