Use Thunderbird with a not documented SDK, or with old APIs is a possibility but is not easy
Mozilla will it prohibit the functions we will need to implement? Never or… when?
It seems that Mozilla follow the same politic than Chrome, with less permissions than we need
Start to work on a addon for Thunderbird now seems to be risked at long term
What about the packaging for a ready-to-go solution for our users? This seems difficult…
What about future migrations if we want to move from Thunderbird ? This seems difficult…
Is there other solutions than Thunderbird?
Is there a usable backend in Thunderbird?
If yes, why use this backend instead another?
What are other solutions, if exists?
Why don't restart M2V with new lib, or a framework? Qt and C++ could be a solution.