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The name cannot be resolved. The connection to the Microsoft exchange server is unavailable. Outlook must be online or connected to complete this action.

Posted on 2016-10-17
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Last Modified: 2016-10-30
I am trying to configure outlook 2010 client to connect to exchange 2013 mailbox account. The domain account is a tenant domain on my exchange 2013 server.  I have added the internal DNS A record to point to my exchange 2013 server but it still says:

The name cannot be resolved. The connection to the Microsoft exchange server is unavailable. Outlook must be online or connected to complete this action.

I am able to connect internally and externally to OWA via the web URL without a problem: https://mail.mydomain.com/owa

Things I have done:

I have made sure the workstation is set to the correct time as the server.
I can ping mail.mydomain.com and get the correct exchange 2013 server ip address

Any other ideas?
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Question by:IT_Field_Technician
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Expert Comment

by:Dr. Klahn
ID: 41847626
You say you've added the A record.  Have you also added the MX record?
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Author Comment

by:IT_Field_Technician
ID: 41847638
Well the MX record is pointing to my spam filter IP address. So yes its created and configured properly.
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Expert Comment

by:David Johnson, CD, MVP
ID: 41847645
what does tracert tell you?
Have you investigated using the Connectivity Analyser
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Accepted Solution

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IT_Field_Technician earned 0 total points
ID: 41858485
i needed to configure RPC over HTTP and once i did that i was able to setup the mail client. thanks for your help though!
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Author Closing Comment

by:IT_Field_Technician
ID: 41865742
q
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