Windows Firewall: Message Queuing server
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
To use Downlevel Client Support, add Mqdssvc.exe to the Windows Firewall exceptions list.
For HTTP traffic, add TCP port 80 to the Windows Firewall exceptions list.
For HTTPS traffic, add TCP port 443 to the Windows Firewall exceptions list.