Custom application directory partition to replicate zone data in forest

I am trying to create a custom application directory partition to replicate zone data to specified domain controllers in a forest. For that I create a first domain domain.net in a new forest using dcpromo on standalone computer name Server2003. The default zone replication scope is To All Dns Servers in the Active directory domain domain.net.

Then I add 2 new domain trees name domain1.net and domain2.net in existing forest domain.net using dcpromo on windows server 2003 name computers Server1 and server2 respectively. The defaul domain functional level is set to windows server 2003.

Then I create an application directory partition name SpecialDns on computer name Server 2003 in active directory domain domain.net using command :-

dnscmd Server2003 / createdirectorypartition SpecialDns.domain.net

To enlist a computer named Server1 in the application directory partition I type a command on Server2003 machine :-

Dnscmd Server1 / enlistdirectorypartition SpecialDns.domain.net

But I an getting following error :-
————————————
Enlist directory partition failed: SpecialDns.domain.net
status = 9901 (0x000026AD)

Command failed: DNS_ERROR_DP_DOES_NOT_EXIST 9901 (000026ad)
———————————-
When I try using Ip address of Server1 I am getting same error message.

When I try FQDN of Server1 I am getting error :-
————————-
Enlist directory partition failed: SpecialDns.domain.net
status = 1722 (0x000006BA)

Command failed: RPC_S_SERVER_UNAVAILABLE 1722 (000006ba)
—————————

Please advise me the correct way to replicate zone data to specific domain controllers in a forest domain.net.

Thanks in advance.