I got Eudora with my second ISP signup. (First was Delphi, text only, then TIAC.) I liked Eudora so much that I got the paid version. Been using Thunderbird and its forks (e.g. Icedove) since then.
Outlook is still the best email/PIM I ever used but I only use it at work where they are paying for it.
I’ve been using Thunderbird with the lightning addon for 6 years now and I’m very happy with it but I’m eager to migrate away from all my mozilla stuff. Palemoon is a fine substitute for Firefox.
Any word if Fossamail is going to go portable?
Got the Eudora and Netscape CDs in summer of ‘95 with first ISP’s software, and a ‘blazing-fast’ 14.4 dial-up. Hot stuff back then, compared to my old ‘86/’87 IBM PS2/50 and 9600 baud dial-up on Compuserve BBS. Still had those and everything since, in boxes, until last move. Felt good to clean-out the ‘archives’.