Can someone show me a guide on how to do this or tell me how. I have a few sites I've done it with, but can't remember how. I'm trying to set it up for a friends business. There are five of them with emails firstname.lastname@example.org. I want to set it up so they can login at gmail to check emails. I know they can just add it to an existing gmail account, but is there a way they can just login with email@example.com at gmail? Rather than a gmail address? I see Google Apps, but they want to charge for that. I thought there was a free way?