I am using EWS to send calendar appointments through exchange 2010_SP2 and I am successful. However, it is sending it from my default outlook account because I am using .UseDefaultCredentials to authenticate with exchange 2010 with my logged in account.
What I want to do is use my current logged in account to authenticate but send a calendar appointment from a shared mailbox so that it shows the shared mailbox name as the organizer.
I know there is a way to do it with MAPI through Outlook and I already have that option in place, but to prevent security vulnerabilities I need to go through Exchange and use EWS.
Using Exchange 2010 SP2 and Outlook 2010.
Coding with VB.NET
