Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1
Topic Last Modified: 2006-07-17

Use the Add IP Allow List Provider control on the Providers tab to add IP Allow List provider services for the local computer that has the Edge Transport Server role installed.

For more information about how to manage IP Allow List provider services, see Edge Transport > Anti-Spam > IP Allow List Providers Properties > Providers Tab.

Provider name

In this field, type the name of the IP Allow List provider service. This name is for your own use to identify the provider.

Lookup domain

In this field, type the domain name that the Connection Filter agent queries for updated IP Allow list information.

Return Status codes

This field shows the IP address status code that is returned by the IP Allow List provider service as a match. When the IP address of a remote server that is sending a message matches an IP address on an IP Allow List provider service's IP Allow list, the provider services may return different types of status codes. Most IP Allow List provider services return one of the following status code types: bitmask or absolute value. Within these data types, there may be multiple values that indicate the type of list on which the submitted IP address is located.

Match to any return code

When you select this option, the Connection Filter agent treats any IP Address status code that is returned by the IP Allow List provider service as a match.

Match to the following mask

When you select this option, the Connection Filter agent acts only on messages that match the IP Address status code that is returned by the IP Allow List provider service.

For providers that return bitmask status codes, type 127.0.0.x, where the integer x is any one of the following values:

  • 1   The IP address is on an IP Allow list.

  • 2   The SMTP server is configured to act as an open relay.

  • 4   The IP address supports a dial-up IP address.

Match to any of the following responses

When you select this option, the Connection Filter agent acts only in messages that match the same IP Address status code that is returned by the IP Allow List provider service.

For More Information

For information on connection filtering and IP Allow list functionality, see the following topics: