I've already looked at Postbox, made by some of the previous Thunderbird developers. http://postbox-inc.com/ http://postbox-inc.com/ I'd have to try these to ev

I've already looked at Postbox, made by some of the previous Thunderbird developers. http://postbox-inc.com/ http://postbox-inc.com/ I'd have to try these to even come close to figuring out what to use. But the idea of SSO for email is a bad one, in my opinion. Email, more than my user account on a site, defines my online identity—and therefore needs the greatest protection.