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How to Create the Base Group Policy Object

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This procedure explains how to create a base GPO for the purposes of blocking SMTP traffic on TCP port 25.

Before You Begin

The procedure in this article specifies naming conventions in bold italic. As you work through the other related procedures as listed in How to Create a Block TCP 25 IPSec Policy, notice that the policies, descriptions, and filters that are named in earlier procedures are referenced in subsequent procedures (again in bold italic).

The account that you use to perform this procedure must be a member of the Domain Admins security group in the domain where the policy will run.

Procedure

To create the base Group Policy object

  1. Open the Active Directory Users and Computers snap-in.

  2. Right-click the Workstations organizational unit, and then select Properties.

  3. Select the Group Policy tab.

  4. Click New, and then name the Group Policy Block TCP25 Policy.