[quote=spdrun] Only things are missing are calendar and Exchange support, but I don’t use Exchange (hosted, cloud, or local) so I’m not missing much.[/quote]I have one instance of Thunderbird connected to an exchange server (both Office365 cloud based and company server based). There is a calendaring function built in through a plugin (I think it is called Lightning). I don’t have it ‘integrated’ with the other servers though. While there is standardization on Email servers, there isn’t much on Calendars. Trying to sync with Yahoo’s calendar is a go-oneway only proposition. Thunderbird also has issues with how Yahoo handles Junk mail (I dumped the protocol exchange and it is Yahoo’s fault).
I am at version 45.1 and I think I am 2 minor revs behind the current.