hi,

you could use LDAP to store the data you need for each user.
I do the SMTP stuff for multiple users/domains. search the archives for my post how to set that up with sendmail.

dave


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   _  _
 _(_)(_)_  David Wetzel, Turbocat's Development,
(_) __ (_) Buchhorster Strasse 23, D-16567 Muehlenbeck/Berlin, FRG,
  _/  \_   Fax +49 33056 82835 Phone +49 33056 82834
 (______)  http://www.turbocat.de/  dave@turbocat.de