I had hotmail in 1997, but i don't use it anymore. stopped a LONG time ago. It's still there, and it's a junk e-mail account. One of my other Hotmail aliases from 1998 is now my MSN messenger login, but a junk e-mail account overall.
I've had my ISP e-mail since 1999 when I got cable, but @Home => ATT => Comcast, so if that counts as 1 still, then sure from 1999. I don't use it as much anymore although my Outlook does sync with it.
I had Gmail since 2004, but it's kinda cluttering up with crap also. My only serious e-mail is my school account.