Only a few were discovered by me personally when I accidentally stumbled upon the sites while surfing the net and the rest of them are found during searches or links from other websites or through the posts of forum members. I have included only free services with fastmail.fm "Member" level as an exception since it requires only a one-time fee. I have included only English Language websites or websites that have English Language option. I have not included email services that do not offer new sign ups currently such as mochamail and yifan. I have included some commonly known services like yahoo and lycos also in my list in order to make my list complete. 
Last Updated : February 12, 2004
free email services
web/IMAP4/POP3/SMTP access with free website
web/POP3/SMTP access with free website
web/IMAP4/POP3/SMTP access
web/IMAP4/SMTP access
web/POP3/SMTP access
web/IMAP4 access with free web hosting
web/IMAP4/POP3/same domain SMTP access
web/IMAP4/POP3 access
web/IMAP4 access
web/POP3 access
web + free website + free file cabinet
web + free file cabinet + free file sharing
web + free website
web + free file cabinet
web organizers (email + notes + bookmarks + scheduling + ..)
ads free + tagline free services
tagline free services
safe messaging services
with automatic translators
with lot of megabytes (20 MB and greater)
with cool and short meaningful @domains!
Hereafter, I will edit and update any new email services that I find in this thread, so that it may be helpful for you all to find all of them in one place. My sincere thanks to Jeff Kogler who gave me this idea!
Hope you all like my compilation....
Thank you
yuvaraj