Thunderbird, version 3, and you'll get me to upgrade when you pry the mouse out of my cold dead fingers. Thunderbird was the first client I found that let me m

Thunderbird, version 3, and you'll get me to upgrade when you pry the mouse out of my cold dead fingers. Thunderbird was the first client I found that let me manage multiple separate accounts through the same interface, receiving and sending mail from each in a logical way. There's probably other ways to do that now, but I'm terrified of upsetting a system that Just Works.™