The 3 most harmful addictions are heroin, carbohydrates, and a monthly salary. -- NNT

I've been using Airmail for about 2 years now and I like the markdown mode.

But right now, I'm testing both Polymail and Nylas because they both have these specific features that Airmail lacks (and that are deal-breakers for me):

- inbuilt open tracking - templates / canned responses - rich contacts (like Rapportive)

I much prefer a desktop client than the native web interface for email.