I think Fastmail ticks all your boxes except the split tab for messages and ads. Not sure about pricing. They’re cheap enough for my use case.
The UI is much better than the gmail one, and the mobile apps are excellent. It supports tags or folders, depending on user preference (I prefer folders, so this is a huge advantage vs gmail.)
The spam filter is much better than gmail’s, at least for my account. Over the same corpus (my email went to both during a transition period), they both let zero spam through, but gmail was incorrectly blocking 10-30% of incoming email until I disabled its spam filter.
The UI is much better than the gmail one, and the mobile apps are excellent. It supports tags or folders, depending on user preference (I prefer folders, so this is a huge advantage vs gmail.)
The spam filter is much better than gmail’s, at least for my account. Over the same corpus (my email went to both during a transition period), they both let zero spam through, but gmail was incorrectly blocking 10-30% of incoming email until I disabled its spam filter.