[igemnace]

I use both. I mainly still keep mutt for encryption and signing. For general, day-to-day use, I prefer aerc because I grok its configuration more -- I believe one of its key advantages is its simplicity of configuration. I find it much easier to think of a keybind or string of commands to make some menial task faster.

aerc still crashes on me from time to time. Not too much that I'm turned off from it, but definitely enough that I feel it's less stable than mutt.

I also find it easier to work with attachments in general with mutt: picking which attachment to view and piping it into different programs.

[gnull]

Aerc has rolled out signing and encryption support recently. I've tested signing, seems to work fine. And now it uses normal GPG keystore, not its own.