Considering so many companies have adopted Microsoft Exchange/Outlook365 and their IT departments have locked out other communication protocols, are there any plans to address this in Thunderbird? Right now a lot of us can't use it because of this limitation. The only solutions so far appear to be Owl (for purchase) or DavMail (which requires a separate OpenJDK 8 installation). This is a fundamental need in Thunderbird rather than a third party add-on. I like the look of Thunderbird but, alas, am not able to use it.