SharePoint Add/Send Appointment Using Exchange Web Services (EWS)
Add Web Service : https://domain/ews/services.wsdl try { SPSecurity .RunWithElevatedPrivileges( delegate () { EWS. ExchangeServiceBinding esb = new ExchangeServiceBinding (); esb.RequestServerVersionValue = new RequestServerVersion (); esb.RequestServerVersionValue.Version = ExchangeVersionType .Exchange2010_SP1; ...