Support for Google Talk accounts with non gmail.com domain (Google Apps For Your Domain)
With Google Apps For Your Domain (www.google.com/a/) you can use your own domain with Gmail and Google Talk.
In Gajim there are only hard-coded Gmail domains and the Google Talk options are hidden if you are using a Google Talk account with a different domain.
There are one more difference between a normal and a hosted (own domain) account, this is the URL for accessing Gmail: normal -> mail.google.com/ hosted -> mail.google.com/a/YOURDOMAIN.COM/