I use Opera's M2, its been the most reliable and quick, easiest to backup even with multiple accounts and has had no issues for years that I have been using, I can back up my 450mb mailbox in a jiff. By version 10 of Opera, HTML would also be incorporated for composing.
Windows Live Mail and Thunderbird. Live Mail for accessing the 'ol hotmail accounts without a browser, and Thunderbird because it's the best pop3/imap account manager for customization and spam filtering. I voted windows live.
I use Thunderbird as IMO is the best IMAP client and the only one I can get to work faultlessy (correct handling of spam and Trash folders for example) with Gmail's IMAP. I also like the fact the settings as OS-independent, meant migrating to from Windows to Linux was a breeze.
Courier 3.5 - now free but version 4.0 under development. I especially like being able to receive e-mails in plain text, if desired and removing '>' from incoming e-mails when repying to them directly. Also useful is the built-in character map.
Used to use Outlook 2003 and OE before that. Both mail programs were worthless for IMAP mail, especially Outlook 2003 which would loose connection with the server at random, but frequent times, especially when I was trying to send mail. Moved to T-bird and never had another issue. In addition to that reason, the folder handling and search features blew Outlook away and is why I voted for it in the poll... JMHO Mike
I found T-bird to be the most reliable Email client, outlook used to just piss me off as error prone piece of junk.
Just a few weeks ago I would have voted for Thunderbird. I just switched to Webmail and I'm very happy.
Eudora. Using it since 1999. I've all messages backed up from 2000 till today and no issues. I love the andvanced filters and tagging rules. Awaiting for Eudora8 / Penelope, (Thunderbird) evolution with Eudora features.
Hello, I used to use Thunderbird in both Windows and Linux, but since I've discovered Evolution on Linux... definitely the best to my eyes. Regards, gkweb.
Mutt. Highly configurable, available on essentially all platforms, can be integrated with GnuPG or OpenSSL, works great with mailing lists by automatically sorting threads, and its command line so I can use it through ssh if need be. Cheers, Alphalutra1
I would like to change my vote from Thunderbird to Windows Live Mail. WLM is more convinience for me.
I don't use e-mail that much to have a very solid opinion, but Windows Live Mail is what I installed here, on my Win7 Ultimate x86. Windows Live Mail performs its tasks well for the most. However, there are some performance issues: sometimes, it gets very slow to do any operation.