[jackal59mo2]

I'm not an admin on DartMUD and don't play there, so I can't tell you anything about how well they respond to questions. However, their Web-based help files at say to do the following for registration problems other than forgotten registration name/code:

Have you been able to do that? It looks like, if nothing else, it would be a way to get them your non-free service e-mail address.