I recently went on a similar search. I started with Evolution, but wasn't happy with it's interaction with my new Zire, or with having to delete LKML messages once I got more than 10,000 in a folder.
I tried Opera for a while, then Kmail, then Thunderbird. In the end, I returned to Evolution. I thought, too, that Thunderbird looks really promising, but the line wrapping and the PIM support got me in the end.
Transfering email between programs was generally not too hard, but transferring an address book was certainly non trivial. Perhaps a local LDAP server would help there, but it doesn't seem to be trivial to set up either.
Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds