I'm using free account with Google Apps. So, you are probably looking for the wrong thing.
login using the username and password in
http://mail.google.com/a/yourdomain.com
And do as i said in Post#8.
Sorry my mistake.
I was mixing up Google Apps with Google App Engine, which is what I am using. Those two sound too similar
You need to register for a (free) trial account of Google Apps for Business and make changes to your DNS record to follow your tutorial. Now I got it
Any email account with full SMTP support will do (that excludes several freemail services), it doesn't have to be Google Apps... it also doesn't necessarily have to be related to your forum.
Well, Me and Kavin came to the conclusion that godaddy doesn't allow SMTP. I set it up 100% correct and doesn't work. So Here in about an hour I am just going to change hosts.