Amiga email clients:
a) Microdot: shareware, threaded emails(!!), keeps mail accounts seperate, and doubles as a newsreader which treats newsgroups like mail folders. (
www.vapor.com )
b) YAM: freeware/open-source, long time favorite of many, lots of supporting arexx scripts can be found to do numerous things. ( aminet )
c) SimpleMail: freeware/open-source, a recent favorite of many, it's the only amiga emailer I know of that supports smtp-auth. (source forge?)
d) AirMail Pro: shareware/commercial, don't know a bunch about this one but am told that it is really nice with incredible filtering, can even filter based on the mail-body. (uhm, google?)
There are more, but those are the top four in no real particular order. I have used microdot for a long time, and have been happy with it. However, I cannot really take anything away fromt the free emailers. Even microdot has a usable demo, so download and try them all! :-P