Specific models without a database table

Hello,

Is it possible to create specific models without a database table?

Basically what I would like to do is create an email account management application that ties into my existing mail server and its API.  I would like Django to have a Users model and keep track of users, a Domains model to keep track of the email domains for the user, but I don't want it to actually keep track of email addresses.  Once the user is in the application, they will go into the "EmailAccount" model and I simply want the model to query my mail server via its SOAP API.  So when they create/delete/edit email accounts, there will be form pages and simple validation done by Django, but the actual work will be done by connecting to the mail servers API and not a database.

Is this possible?

Thanks,

Kris