[nobody9999]

>For my accounts I rely on Apple Mail and SpamSieve, which works well. The dealbreaker for me when I tried Thunderbird years ago is that it lacked any way to export the filters you'd set up, so you could copy them to your other computers. Has this been addressed?

No. You can't even copy them to other accounts on the same computer. I had to recreate dozens of rules last year for just that reason. If TB wasn't head and shoulders above other MUAs, I'd have dumped it.

Then again, I have emails in TB accounts going back to 1996, so perhaps I'm biased in that regard.

[newscracker]

Please see my other comment in this thread on how to copy filter rules from one profile to another. [1]

[1]: https://news.ycombinator.com/item?id=34735788