To make this client system part of the mail server virtual machine's domain (page 54)

1 On the client system, open the Start menu, and select Control Panel > System.

2 Select the Computer Name tab.

3 Click the Change button.

4 Under Member of select the Domain radio button.

5 Enter the domain name that you used when you created the mail server domain. This will be the short

name for the mail server (see "Hosts Files" on page 19 for an example).

My domain name of the mailserver0 is "mycompany.com" (Is it right?) so its log name is "mailserver0.mycompany.com". I don't understand what domain name I should add to the client system.

I refer to the Hosts File on page 19, the long name of the client system is "client0.mailserver0.mycompany.com" but I only can add the domain "mycompany.com". So the long name of the client system is "client0.mycompany.com". It seems wrong? (Please see attached files)

Would you please help to solve this issue? Thanks!