I am subscribed to the wine-devel, wine-bugs and wine-patches mailing lists (https://www.winehq.org/forums). Having the exact same issue.

It seems to very easily flag discussion about .exes as spam, it's really disappointing. It's been several years and the filters haven't improved, despite me religiously flagging spam/not spam in those lists.

In the end I just gave up and set up filters to specifically prevent marking incoming emails on those lists as spam. It misses the odd linkedin invitation, but it's not like it was catching it before...