I have been attempting to integrate my Outlook accounts into Thunderbird. The mail components are fine, the calendar is not. Unfortunately as Microsoft has further moved it Outlook functions online, it has not made support for Calendar sync with clients such as Lightning in Thunderbird easy. CalDav functions are difficult if not impossible to find. I found one solution that I thought might help, DAVMail. It works perfectly for my two corporate outlook accounts. However it does not seem to work at all for my personal account. Not sure why. I have done some troubleshooting by at this point I am a bit stumped.

Does anyone have any kind of insights on how to resolve the Outlook Calendar sync problem??