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Outlook logon fails after mailbox moves from Exchange 2010 to Exchange 2013 or Exchange 2016

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Symptoms

When mailboxes are moved to Exchange Server 2013 or Exchange Server 2016, users can no longer access those mailboxes.

This issue occurs in the following scenario:
  • A user typically uses Outlook Anywhere to connect to his or her Exchange Server 2010 mailbox.
  • The user's mailbox is moved to Exchange Server 2013 or Exchange Server 2016.
  • After the mailbox is moved and the user tries to log on, he or she is prompted that “The Microsoft Exchange administrator has made a change that requires you quit and restart Outlook.” 
  • After Outlook is restarted, the client remains disconnected for up to 12 hours.

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Cause

After the mailbox move is completed, Exchange Server 2013 or 2016 continues to proxy the autodiscover request to Exchange Server 2010. Exchange Server 2010 responds with a 302 redirect back to Exchange Server 2013 or 2016 (depending on the upgrade).

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Resolution

To resolve this issue, restart the Autodiscover Application Pool on the Exchange Server 2013 or Exchange Server 2016 servers.

Restart-WebAppPool MSExchangeAutodiscoverAppPool


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More Information

In this scenario, the HTTPProxy\Autodiscover logs contain information that resembles the following:

2015-06-16T16:01:23.845Z,d511bfef-a7e0-4e7d-beb8-6e6f8c0d2bd9,15,0,1044,21,,Autodiscover,autodiscover.fabrikam.de,
/autodiscover/pmcu9..fabrikam.de/autodiscover.xml,,Negotiate,true,FABRIKAM\pmcu9,fabrikam.de,
Smtp~pmcu9@fabrikam.de,Microsoft Office/15.0 (Windows NT 6.2; Microsoft Outlook 15.0.4569; Pro),192.168.2.115,
E15SRV1,302,302,,POST,Proxy,e14.fabrikam.local,14.03.0123.000,IntraForest,ExplicitLogon-SMTP,,,,349,201,1,,3,1,,0,
,0,,0,0,,0,24,0,1,0,0,16,0,0,0,0,0,21,0,17,4,4,7,24,,,,BeginRequest=2015-06-16T16:01:23.829Z;
CorrelationID=<empty>;ProxyState-Run=None;DownLevelTargetHash=0/1/2;ClientAccessServer=E14.fabrikam.local;
ResolveCasLatency=0;FEAuth=BEVersion-1937997947;ProxyToDownLevel=True;BeginGetRequestStream=2015-06-16T16:01:23.829Z;
OnRequestStreamReady=2015-06-16T16:01:23.829Z;BeginGetResponse=2015-06-16T16:01:23.829Z;
OnResponseReady=2015-06-16T16:01:23.845Z;EndGetResponse=2015-06-16T16:01:23.845Z;
ProxyState-Complete=ProxyResponseData;EndRequest=2015-06-16T16:01:23.845Z;,

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Keywords: kbsurveynew, kb

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Article Info
Article ID : 3097392
Revision : 5
Created on : 6/22/2019
Published on : 6/22/2019
Exists online : False
Views : 379