Normally that shouldn't be a problem, as long as the standard protocols POP, IMAP, and SMTP are enabled on an Exchange server. I'd suggest you ask your IT folks.

Thanks for that background info!

I learned that the new system will require the 'active sync' protocol, and that TB so far does not provide this possibility. The question, of course, is now - will TB get active sync? Does anyone know about this?

Historically, the focus has been on open/standard protocols, and there is no shortage of other things to work on, so I don't imagine the lack of ActiveSync support is going to change any time soon.

(Mozilla did implement ActiveSync for the mail client in Firefox OS but based on info I can find today, not completely. Also, the phone manufacturers paid Microsoft's licensing fee, which is not something I imagine Mozilla wants to do for all Thunderbird users.)

There is a new extension in development to provide ActiveSync support, but the author warns that it is unfinished and should only be used for testing: TbSync (Provider for Exchange ActiveSync).

Thank you for the info! Well, one can only hope the development of the extension continues... Would be happy to keep TB!