I'm a Pine user. I seriously dislike mutt. It's terribly uncomfortable to use. But it is maintained, and luckily it's quite flexible and can be changed in how it acts. I'm trying to get by with mutt... and it's a slow process, one step at a time.
First annoyance, by default it uses my machine name in the from address. The fix is easy enough. Open your .muttrc and add or change:
set realname="Your Name"