How to Allow Anonymous Access on Your Outbound SMTP Virtual Server

  • Article

 

For your outbound SMTP virtual server, you should enable anonymous access unless you connect directly to a smart host. Remote servers on the Internet do not expect your server to authenticate.

Note

Generally, configuring a smart host works better on a connector. Configuring a smart host on an SMTP virtual server is not the preferred method.

Before You Begin

Before you perform the procedure in this topic, read Connecting Exchange to the Internet.

The following permissions are required to perform this procedure:

  • Member of the local administrators group and a member of a group that has had the Exchange Administrators role applied at the administrative group level

Procedure

To allow anonymous access on your outbound SMTP virtual server

  1. Right-click <Your Outbound SMTP Virtual Server>, and then click Properties.

  2. Click the Delivery tab.

  3. Click Outbound Security to select the type of authentication the server will use with remote servers.

  4. In Outbound Security, click Anonymous access.

    The Outbound Security dialog box

    f19d3254-9c4f-4832-abf5-4acce125ffbe

    Note

    If you connect to a smart host (configured by clicking Advanced on the Delivery tab), the smart host may require you to authenticate. To discover if authentication is required, contact the owner of the smart host or your Internet service provider (ISP).