I'm trying to migrate users from Exchange 2007 to Office 365. For last few months all new users were created on Office 365 but it is time to move existing ones there as well. I also have Exchange 2013 on premises with group of users migrated there from 2007 and they will stay there. Emails are still sent using 2007 through Edge server (legacy.mydomain.com) and OWA is going to 2013 through Sonicwall (mail.mydomain.com).

When I test Outlook connectivity on testconnectivity.microsoft.com I have error Testing RPC over HTTP connectivity to server mail.mydomain.com RPC over HTTP connectivity failed.

Attempting to ping RPC proxy mail.mydomain.com
     RPC Proxy can't be pinged.
     
    Additional Details
     
An unexpected network-level exception was encountered. Exception details:
Message: The remote server returned an error: (404) Not Found.
Type: Microsoft.Exchange.Tools.ExRca.Extensions.MapiTransportException
Stack trace:
at Microsoft.Exchange.Tools.ExRca.Extensions.MapiRpcTestClient.PingProtocolProxy(String endpointIdentifier)
at Microsoft.Exchange.Tools.ExRca.Tests.MapiPingProxyTest.PerformTestReally()
Exception details:
Message: The remote server returned an error: (404) Not Found.
Type: System.Net.WebException
Stack trace:
at System.Net.HttpWebRequest.GetResponse()
at RpcPingLib.RpcPing.PingProxy(String internalServerFqdn, String endpoint)
at Microsoft.Exchange.Tools.ExRca.Extensions.MapiRpcTestClient.PingProtocolProxy(String endpointIdentifier)
Elapsed Time: 94 ms.

It is trying to use mail.mydomain.com and this email is on old Exchange 2007 (legacy.mydomain.com).

Office 365 migration uses Outlook anywhere to set up the migration endpoint. There should be something wrong with configuration of Outlook anywhere.

Any help would be appreciated.

Hi AdamNa,

Thank you for your question.

By this error, this issue was referred to network problem, please contact to network administrator to resolve it.

There are some suggestion for you troubleshooting:

1.        Ports was opened on Sonicwall
2.        Tenlnet Exchange port 25
3.        Test message flow
4.       

You could also tell us anything which didnt work in organization

If there are any questions regarding this issue, please be free to let me know. 

Best Regard,

Jim

Hi,

After gone your query, see now it is not a tough task at all to migrate Exchange 2007 to Office 365 but still if you are expected any error then once again you should follow step by stem guide follow as : http://blogs.technet.com/b/canitpro/archive/2013/11/20/step-by-step-migrating-from-exchange-2007-to-office-365.aspx It will definitely help you to do your task successfully.

Moreover that now most of the experts are now using automated tools to migration from one place to another so i would also recommend you to try on of the trusted automatic tool to migrate  Exchange 2007 to Office 365) (http://www.lepide.com/exchangemigrator/office-365-migration.html) it will help you to to migration from Exchange Server to Office 365 quite easily without any downtime.

Hope my recommendations will surely help you.

Walter

• Edited by WalterRoz 19 hours 56 minutes ago No

Hi,

After gone your query, see now it is not a tough task at all to migrate Exchange 2007 to Office 365 but still if you are expected any error then once again you should follow step by stem guide follow as : http://blogs.technet.com/b/canitpro/archive/2013/11/20/step-by-step-migrating-from-exchange-2007-to-office-365.aspx It will definitely help you to do your task successfully.

Moreover that now most of the experts are now using automated tools to migration from one place to another so i would also recommend you to try on of the trusted automatic tool to migrate  Exchange 2007 to Office 365) (http://www.lepide.com/exchangemigrator/office-365-migration.html) it will help you to to migration from Exchange Server to Office 365 quite easily without any downtime.

Hope my recommendations will surely help you.

Walter

• Edited by WalterRoz Friday, May 08, 2015 11:29 AM No