Quote Originally Posted by Maurice Arney View Post
Thunderbird is the "open source" (free) version of Outlook. I use both and Outlook has nothing over Thunderbird. And Thunderbird is free!
Not to split hairs, but Thunderbird is not the open source version of Outlook. It is a completely separate product, developed by a different organization, using a completely different code base. Thunderbird does lack a few features of outlook, but it also suffers from less code bloat and way fewer serious security issues. AND it wasn't developed by Microsoft, which is the strongest thing recommending it.