Exchange 2013 Outlookanywhere proxy showing internal servername

Dear All,

I am testing Exchange server migration from 2010 to 2013. Exchange 2010 version is sp3 and 2013 is cu1.

The systems were installed and users re able to send and receive mail from both servers.

 I tested Outlook anywhere with users from exchange 2010 and 2013, both users are able to connect.When  I checked the outlook anywhere proxy setting of exchage 2013 user, it showing the internal server name of exchange 2013. But for 2010 users, it showing OA external name only.

I changed the external and internal name of outlook anywhere to mail.<domainname>

Also for exchange 2013 internal users, it showing the OA external name.

Is it normal, or any configuration mistake.

regards,

sarma