Autodiscover Exchange Server 2007 and 2013 Coexistence

Hello
We are having some issues where some users are not being notified when their mailbox is being migrated to E2013.
Before 2013, we never had a load balanced solution for CAS in Exchange Server 2007 or a single name space.
Below is our current config
AutoDiscoverServiceCN : Server2K7CASpd
AutoDiscoverServiceClassName : ms-Exchange-AutoDiscover-Service
AutoDiscoverServiceInternalUri : https://legacy.domain.int/Autodiscover/Autodiscover.xml
AutoDiscoverServiceGuid : 77378f46-2c66-4aa9-a6a6-3e7a48b19596
AutoDiscoverSiteScope : {USChicago, UKLondon, SGSingapore}
AutoDiscoverServiceCN : Server2k7CASdr
AutoDiscoverServiceClassName : ms-Exchange-AutoDiscover-Service
AutoDiscoverServiceInternalUri : https://legacy.domain.int/Autodiscover/Autodiscover.xml
AutoDiscoverServiceGuid : 77378f46-2c66-4aa9-a6a6-3e7a48b19596
AutoDiscoverSiteScope : {USChicago, UKLondon, SGSingapore}
AutoDiscoverServiceCN : Server2013CASPD01
AutoDiscoverServiceClassName : ms-Exchange-AutoDiscover-Service
AutoDiscoverServiceInternalUri : https://autodiscover.domain.int/autodiscover/autodiscover.xml
AutoDiscoverServiceGuid : 77378f46-2c66-4aa9-a6a6-3e7a48b19596
AutoDiscoverSiteScope : {UKLondon}
AutoDiscoverServiceCN : Server2013CASPD02
AutoDiscoverServiceClassName : ms-Exchange-AutoDiscover-Service
AutoDiscoverServiceInternalUri : https://autodiscover.domain.int/autodiscover/autodiscover.xml
AutoDiscoverServiceGuid : 77378f46-2c66-4aa9-a6a6-3e7a48b19596
AutoDiscoverSiteScope : {UKLondon}
AutoDiscoverServiceCN : Server2013CASDR02
AutoDiscoverServiceClassName : ms-Exchange-AutoDiscover-Service
AutoDiscoverServiceInternalUri : https://autodiscover.domain.int/autodiscover/autodiscover.xml
AutoDiscoverServiceGuid : 77378f46-2c66-4aa9-a6a6-3e7a48b19596
AutoDiscoverSiteScope : {UKLondon}
AutoDiscoverServiceCN : Server2013CASDR01
AutoDiscoverServiceClassName : ms-Exchange-AutoDiscover-Service
AutoDiscoverServiceInternalUri : https://autodiscover.domain.int/autodiscover/autodiscover.xml
AutoDiscoverServiceGuid : 77378f46-2c66-4aa9-a6a6-3e7a48b19596
AutoDiscoverSiteScope : {UKLondon}
I believe that we should change the AutoDiscoverServiceInternalUri on the two 2007 CAS to ALSO be the same as our 2013 CAS.
We know that when Outlook is opened, Autodiscover will respond with any of the 6 available CAS, and we think that those Outlook clients that are misconfigured, are those that are not getting notified when their Mailbox is moved to E2013.
Thanks

We are also getting inconsistent results using the Test-OutlookWebServices PS
Test 1
Test-OutlookWebServices -Identity [email protected] | fl
Id : 1003
Type : Information
Message : About to test AutoDiscover with the e-mail address [email protected].
Id : 1006
Type : Information
Message : The Autodiscover service was contacted at https://legacy.domain.local/Autodiscover/Autodiscover.xml.
Id : 1016
Type : Success
Message : [EXCH]-Successfully contacted the AS service at https://ServerCASpd05.domain.local/EWS/Exchange.asmx. The elapsed
time was 76 milliseconds.
Id : 1015
Type : Success
Message : [EXCH]-Successfully contacted the OAB service at https://ServerCASpd05.domain.local/EWS/Exchange.asmx. The elapsed
time was 0 milliseconds.
Id : 1014
Type : Success
Message : [EXCH]-Successfully contacted the UM service at https://ServerCASdr05.domain.local/UnifiedMessaging/Service.asmx.
The elapsed time was 558 milliseconds.
Id : 1016
Type : Success
Message : [EXPR]-Successfully contacted the AS service at https://legacy.domain.local/EWS/Exchange.asmx. The elapsed time
was 46 milliseconds.
Id : 1015
Type : Information
Message : [EXPR]-The OAB is not configured for this user.
Id : 1014
Type : Information
Message : [EXPR]-The UM is not configured for this user.
Id : 1013
Type : Error
Message : When contacting https://mail.domain.local/Rpc received the error The remote server returned an error: (404) Not
Found.
Id : 1017
Type : Error
Message : [EXPR]-Error when contacting the RPC/HTTP service at https://mail.domain.local/Rpc. The elapsed time was 93
milliseconds.
Id : 1006
Type : Success
Message : The Autodiscover service was tested successfully.
Id : 1021
Type : Information
Message : The following web services generated errors.
Contacting server in EXPR
Please use the prior output to diagnose and correct the errors.
Test 2
Test-OutlookWebServices -Identity [email protected] | fl
Id : 1003
Type : Information
Message : About to test AutoDiscover with the e-mail address [email protected].
Id : 1006
Type : Information
Message : The Autodiscover service was contacted at https://legacy.Domain.local/Autodiscover/Autodiscover.xml.
Id : 1016
Type : Success
Message : [EXCH]-Successfully contacted the AS service at https://ServerCASpd05.Domain.local/EWS/Exchange.asmx. The elapsed
time was 46 milliseconds.
Id : 1015
Type : Success
Message : [EXCH]-Successfully contacted the OAB service at https://ServerCASpd05.Domain.local/EWS/Exchange.asmx. The elapsed
time was 0 milliseconds.
Id : 1014
Type : Success
Message : [EXCH]-Successfully contacted the UM service at https://ServerCASdr05.Domain.local/UnifiedMessaging/Service.asmx.
The elapsed time was 15 milliseconds.
Id : 1016
Type : Success
Message : [EXPR]-Successfully contacted the AS service at https://legacy.Domain.local/EWS/Exchange.asmx. The elapsed time
was 78 milliseconds.
Id : 1015
Type : Information
Message : [EXPR]-The OAB is not configured for this user.
Id : 1014
Type : Information
Message : [EXPR]-The UM is not configured for this user.
Id : 1017
Type : Success
Message : [EXPR]-Successfully contacted the RPC/HTTP service at https://legacy.Domain.local/Rpc. The elapsed time was 187
milliseconds.
Id : 1006
Type : Success
Message : The Autodiscover service was tested successfully.

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According to the descritpion, I know that you want to make sure the messages that you sent out be safe.
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http://office.microsoft.com/en-001/outlook-help/encrypt-e-mail-messages-HP001230536.aspx#BM2
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Also find a similar thread for your reference:
http://social.technet.microsoft.com/Forums/exchange/en-US/a0acf5e1-7525-4ce9-b487-a112a881b4ce/sending-encrypted-emails-externally
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here

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We are currently running exchange server 2007 and are in the process of moving towards Office 365 for our email needs by the year end.
My question is specifically towards exchange and/or Outlook, but also would be applicable within the office 365 environment. Is there any way to limit the number of email recipients in the to field specifically? IE, if someone is sending an email
to more than X people, then it will alert the user that it cannot be sent, without the same limitation applying to the BCC field?
The use case would be to prevent the accidental sharing of email addressed during mass mailings.

Hi,
Based on my knowledge, Exchange has no built-in function to restrict the recipients only in the TO field. The workaround is to use the cmdlet Sathish provided to restrict the recipients including TO, CC and BCC field. Your understanding will be appreciated.
For your reference:
Set-TransportConfig
https://technet.microsoft.com/en-us/library/bb691276%28v=exchg.80%29.aspx?f=255&MSPPError=-2147217396
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Best regards,
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I'm migrating our Exchange 2007 environment to Exchange 2013. Now I am in a co-existence environment where all the mailboxes except some test-users resides on Exchange 2007. Between Users on the same Exchange MBX Server athe FREE/BUSY Information sharing
works correctly, but between Exchange 2007 and 2013 it's not working.
I verified my settings and also the EWS virtual directory on 2007 CAS Servers using Get-WebServicesVirtualDirectory.
The internal and the external URLs are set to https://legacy.mydomain.com/....
What am I missing?
Thanks & Kind Regards,
Jürgen

Hi,
According to your description, I understand that the free/busy information between Exchange 2007 and Exchange 2013 is not available for your coexistence environment. To narrow down the issue, please check the following points:
1. Does the issue happen to all users or specific users?
2. Although a user on Exchange 2013 can't get free/busy information from a user on Exchange 2007, please confirm whether Exchange 2007 user can get free/busy information from Exchange 2013 users.
3. Close Outlook and only access user mailbox from OWA to check whether the issue persists. For Outlook client,
create a new Outlook profile
to have a try.
4. Please make sure the virtual directories settings are configured correctly in both Exchange 2013 and Exchange 2007.
Virtual directories settings in Exchange 2007:
http://blogs.technet.com/b/meamcs/archive/2013/07/25/part-3-step-by-step-exchange-2007-to-2013-migration.aspx
Certificate and Virtual directories settings in Exchange 2013:
http://blogs.technet.com/b/meamcs/archive/2013/07/25/part-2-step-by-step-exchange-2007-to-2013-migration.aspx
5. Restart IIS service in Exchange server by running iisreset /noforce from a command prompt window.
If possible, please run Test E-mail AutoConfiguration in Outlook to check whether the autodiscover service can get correct Availability service URL in the results. If there is any event logs, please collect some for further analysis.
Regards,
Winnie Liang
TechNet Community Support

Autodiscover Exchange Server 2007 and 2013 Coexistence

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