This is a Technical Enablement Lab #21, which are all found here: https://supportforums.cisco.com/docs/DOC-9836
The roadmap for CCA 2.x includes the implementation of adding an SMTP Notification to an external mail server for voice mails left on the UC500 phones. This can include sending the attachment in the EMAIL, which seems to be a very frequently used feature.
This is in addition to IMAP integration of the Voice Mail box of the UC500 phone to the user’s PC Mail Client, which is configurable as a Smart Application in CCA.
Until we offer the SMTP capability in CCA, this lab will help you configure this feature using the CUE GUI. This configuration will not affect CCA and it can still be used to manage everything else on the system.