Apple Mail is riddled with bugs it’s unusable. Do yourself a favor and switch. Anything else is better than it, Thunderbird is a pretty good alternative imo. It feels like apple doesn’t put any care into regression bugs in their applications. It’s the same on the iPhone, Mail is so bad that I uninstalled it in favor of outlook (the irony...) —Mail was sucking so much battery that my phone wouldn’t last 8h. With outlo…
> Apple Mail is riddled with bugs it’s unusable. Weird, I've been using it for a decade and I have zero issues. Maybe 'unusable' is a pretty subjective assessment?
As far as I’m concerned, Mail is one of those things that consistently just works. The only issue I used to have was quirky undo/redo of archivals/deletions, which I believe had to do with Gmail’s IMAP servers and/or the way Mail talks to them, but I am not noticing that lately.
If I were OP, I’d consider again whether third-party software that they and their coworkers have in common is wreaking havoc here. If there’s no such software or the issue manifests itself on a clean system without any third-party apps at all, then this Heisenbug should probably on Apple’s Radar…