Microsoft KB Archive/248134

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Running Outlook Express News on Small Business Server

Article ID: 248134

Article Last Modified on 5/18/2001


  • Microsoft BackOffice Small Business Server 4.5

This article was previously published under Q248134


To run Outlook Express News on a Small Business Server-based computer with Microsoft Proxy 2.0 packet filtering enabled, you must define a packet filter for the NNTP protocol. The Proxy 2.0-based client, which is normally used to manage Winsock-based programs such as Outlook Express, should not be installed on the Small Business Server computer. A packet filter for NNTP permits Outlook Express to download from and connect to newsgroups when running on the Small Business Server-based computer.

NOTE: Creating packet filters that open any inbound TCP ports can make your server more vulnerable on the Internet. The packet filter for NNTP will open all inbound ports between 1025 and 5000. To provide the best security, it is recommended that you use Outlook Express News from a client computer that is using the Proxy 2.0 client.


To run Outlook Express News on an SBS-based computer, create the following packet filter for the NNTP protocol:

  1. Open the Proxy 2.0 MMC on the Small Business Server-based computer.
  2. Right-click Winsock Proxy, and then click Properties.
  3. Click Security, click Add, and then click Custom Filter.
  4. Choose TCP as the Protocol ID, and then choose Both for Direction.
  5. For the Local Port, choose Dynamic Port, and for the Remote Port, choose Port 119.
  6. Click OK, and then click OK.
  7. Stop and then restart the Winsock Proxy service.

Additional query words: smallbiz

Keywords: kbinfo kbnetwork KB248134