MailMate is a glorious, configurable, ultimate-nerd-dream of an email client built just for macOS. I use it every day in conjunction with Fastmail and SaneBox to give me email super powers.
But the killer feature? It just fucking works.
And believe me. I’ve tried every single email client for Mac and iOS – paid apps, free apps, subscription apps, apps from small companies, and apps from giant corporations.
I don’t know what else to say except that I love this app so much. And unless I’m horribly mistaken and there is secretly a giant corporation hiding behind MailMate and slurping up all of my private data, MailMate is built by a single developer, which is even more awe inspiring.