I have an Windows 2003 small business server previously. We have migrated entire to a new AD domain and new exchange 2013 server
We have very little old users. We adopted the method of moving the mails from the old server to pst and transfer from pst to the new server.
However, after the migration, when reading the old emails from the internal mail users (in the outlook connecting to the new server), the email is not able to reply with a valid email address
I connect the outlook to the old server and look at the properties of the users. They have X400 value.
Example X400:C=US;a= ;p=helmidom;o=exchange;s=administrator
Am I suppose to input this value into my user properties in my EAC in exchange 2013 ?
What value should I replace example my mail server FQDN is mail.domain.com?