Please do use this Tangerine Key: 46420773S1
Then I get some money when you open an account too! :-)
ERPNext helps you take full control of your business. It is as powerful as it is easy to use. Try it in a VM or download now!
Zoho.com -- my choice for avoiding gmail. Great mail, easy setup and good calendaring with email reminders! And a lot more like books and CRM... Blew me away frankly. Almost an ERP.
Their affiliate thing is so onerous I'm not even going to try (pure email with additional hoops to jump through (they're cheap in more ways than one... :-) ) ).
That aside, it's an awesome service either paid or free and you should check it out! You can ditch Google. Yes, you can! Highly recommended. Just try it.
Lately, setting up Gmail for a paid domain name is a right pain. Zoho is painless. Just did both recently, so give them a shot. Zoho wins.