This article describes how to update server configuation in Outlook client during cross-forest migration.

To edit a profile:

  1. Go to Start > Control Panel > Mail > Show Profiles > Properties > Email Accounts
    Note: if you cannot locate the Mail icon in Windows Control Panel, turn on Classic View (click Classic View on the left side of the Control Panel window).
  2. Find your email address and double click on the account
    Mail > Show profiles > Email accounts
  3. Enter in the Server field
    Exchange server
  4. Navigate to More Settings > Connection tab > Exchange Proxy Settings
  5. Enter in the Use this URL to connect to my proxy server for Exchange field and click OK > Apply > OK > Next > Finish.
    Exhange Proxy settings