> Complicating things (apparently) is that our mail server is
> separate from the Web server on which we provide clients'
> virtual hosts: I am hoping to be able to allow a customer to
> create (say) "[EMAIL PROTECTED]" (but ezmlm-web appears to
> want to use the canonical hostname for the mail server as the
> RHS of the email address).
> Is there some other choice I might plausibly make to support
> such lists?
I don't know if this will be applicable in your environment, but
qmailadmin (http://www.inter7.com/qmailadmin.html) has mailing list