Be sure to check the local FAQ list!
SoCal users take note: Majordomo (the mail interface) is not able to correlate between host-based addresses (user@host.sandiegoca.ncr.com) and ROLO First.Last entries. MajorCool, however, is fully aware of the relationship between host and ROLO addresses and will display all personal subscriptions regardless of which address they were subscribed under.
End-users should refer to the User's Guide for info about using mail-based Majordomo services.
List-owners are encouraged to see the List Administration Guide for configuration instructions and other details.
This info and much more is available at the Majordomo project archives.