Hi Debillin -
Constructware does offer built-email in notifications as part of the standard solution.
With respect to an API, Constructware does offer a Data Exchange solution that enables you to connect to other systems; if you provide us with more information about what it is you would like to accomplish we can look into how best to solve it.
With respect to emailing into Constructware, you can currently fax in, so you could use eFax or a similar service to print > fax into Constructware today. We are also looking into email-in as a future enhancement (I'm a big proponent of this!).
Thanks,
Steve Williams
Autodesk, Inc.