[_jal]

Totally fine - I do devops; software ensures my life is suffused with constant low-grade hostility.

Mutt is a bit old-school. It absolutely assumes rather more familiarity with how mail works than most other MUAs, and the configuration isn't very... ergonomic is the wrong word, but close. Combined with man(1) style docs, there isn't a good way to distinguish obscure knobs one would rarely want to touch from things everyone configures, for instance, unless you're already pretty familiar with what's going on.

In a past life, I spent a noticeable fraction of my career dealing with email from several angles, and love mutt. But if you've made healthier choices, I can absolutely see being bewildered and frustrated by it.