[cimmanom]

I've used Apple's mail.app for over a decade now and don't think anything else matches its handling of multiple accounts (all the other clients I've tried try to keep the accounts too separate). For reference, I've got 8 active accounts at the moment.

Unfortunately, it's increasingly buggy in increasingly problematic ways, and Apple appears to have zero interest in fixing it.

So I'd love to see a client that works like that for multiple accounts (with support for both POP and IMAP) and has all of Apple Mail's features but isn't broken.

The other things I want, but that wouldn't be enough on its own to get me to switch, would be:

1) a way to apply multiple tags to a single message, and filter by tag

2) add private notes to a message or thread