MailMate is an IMAP email client for macOS featuring extensive keyboard control, Markdown integrated email composition, advanced search conditions and drill-down search links[…]

Sometimes, I wonder if I should try to use MailMate instead of (at least for some specific tasks). It’s an app made for nerds.

I think it’s even have MacVim integration, and still makes emails available in the filesystem instead of closing them away for Spotlight only.