I'm a DD so I know about volunteer work, thanks for your contributions. I reassigned the bug. I think a good solution here is to get the enigmail version that is in sid into buster. Keeping the old version in buster makes no sense since it won't ever work with buster's Thunderbird again.
- Bug#945065: thunderbird from buster security breaks... Hans-Christoph Steiner
- Bug#945065: reassigning Hans-Christoph Steiner

