Exchange 2013 CU8 on Server 2012R2. Multiple users with iPhones/Android/BB and tablets using POP/IMAP to get email from the server. I am getting 4-6 of these a day and there appears to be no good reason why.
I've tested the Exchange server health more times than I've had hot coffee with no result. Everything comes back healthy. There are no precursors to the message.
Windows Event ID: 4999
Message: Watson report about to be sent for process id: 5048, with parameters: E12IIS, c-RTL-AMD64, 15.00.1076.009, M.Exchange.Imap4, M.E.PopImap.Core, M.E.P.C.StringResponseItemProcessor.GetNextChunk, System.InvalidOperationException, daf0, 15.00.1076.000.
Detected on: 2015-07-15 07:51:06 EST
Is this an IIS issue? PopImap issue? Is there any resolve to this in CU9?