If you have an e-mail account, you should be able to access webmail using any of the following:

https://battlebazaar.com/MEWebMail

http://mail.battlebazaar.com

http://mail.battlebazaar.net

Take your pick -- also, if you have an account, the POP3, IMAP and HTTPMail servers should be working also, so you should be able to configure any common e-Mail application to work also..