Develop a plug-in (DLL) using ISAPI component in Microsoft Exhange to intercept the remote access login in Microsoft Outlook Web Access (OWA) and convert the login information into Radius and feed the username/password to remote Radius server. The same username and password will be passed to Active Directory (AD) for authentication as well. First authentication is AD,second is Radius.
Once both authentication is successful, the OWA will resume to the normal OWA page for successful login. Any failure from any one of the authentication process will render the steps unsuccessful.
In the OWA password field, user will enter 'password+PIN'. The program will need to know to perform a backward counting character to separate the information before submitting to the 2 different authentication servers.
I am ready to build your messaging infrastructure; I have 7+years of experience in messaging infrastructure with MCP, MCSA, MCSE in Messaging, MCTS in Exchange 2007, Lync 2010 and OCS 2007 messaging certifications.