I guess this is for DOS only systems? I used elm on BSD/386 in the 80s, and honestly was a little surprised to learn it's still being maintained by Kari Hurtta. And then I was thinking, Pegasus can't be older than Pine, Alpine or Mutt, can it? But yes, it is. You learn something new every day.
lproven|1 year ago
No.
The Pegasus client is a Win32 app and in my minimal testing also works on WINE on Linux.
I haven't tried the Mercury email server but it's Win32 as well.