Dec 10 2018 12:26 AM
Recently we started to get strange exception on the EWS: SyncFolderItems call, this is the error : "An internal server error occurred. The operation failed., IdAndSession.MailboxSession: session is not IMailboxSession".
Please note that code didn't change for more than year.
All those issue are on customer accounts, we had this in the past and after sometime those errors vanished, but we need to figure out what is going on. We notice that this someone have the same issue here:https://social.msdn.microsoft.com/Forums/office/en-US/ee750676-24a9-4aa4-bbdd-43cf2c9ff813/ewsexchan... . It's related to exchange version update. Therefore, can anybody help me to review this issue?
Dec 11 2018 09:59 AM
Dec 17 2018 09:31 AM
Same issue here, it's already a week with this strange error, and Microsoft support doesn't provide any meaningful answers, only that they don't support 3'rd party applications and that it's a connectivity issue. Very non-professional.
Dec 18 2018 11:02 PM
It should be fixed now. {Version: 15.20.1446.019}