Hello,
I'm seeing a bit of a strange issue with Outlook 2010 SP2 while connected to Exchange 2013 (all roles on the same box).
When I open any application, for example Word and click "File" -> "Save & Send" -> "Send as Attachement" I'm getting prompted for User/Pass (outlook authentication window). If I put credentials in all is ok and the email with the attachment is created. However, when I migrate the mailbox back to Exchange 2007 there's no such prompts anymore.
Would that be something that has any relation to RPC IIS directory authentication on Exchange 2013?
It seems to be related to MAPI.
Thank you.
Memento Mori