A while ago I had to use a Windows machine at work, and of course the first thing I did was install #Emacs on it. Most things worked surprisingly well, but I couldn't get #Mu4e to work. I also tried #NotMuch and #Mew, but I also failed to either install them or compile them.
At the end I tried #Gnus, and everything worked out of the box. I didn't even need to install any GNU utility.
Gnus is not the prettiest, and its terminology and configuration is confusing. But it is incredibly versatile.
It has worked very nicely as an Email email client, specially to manage mailing lists. But now I also use it for things like Reddit and Hackernews.
What are your experiences with Emacs mail clients under Windows? Is anyone using something other than Gnus?
Narrowing in Emacs (youtu.be)