New E-Mail Address Policy Wizard > E-Mail Addresses Page > Custom Address


Applies to: Exchange Server 2007 SP3, Exchange Server 2007 SP2, Exchange Server 2007 SP1

Use the Custom Address dialog box to configure the following custom e-mail address settings for your e-mail address policy. You can create custom SMTP e-mail address or custom non-SMTP e-mail address policies.

When creating a custom SMTP e-mail address, you can use the variables in the following table to specify alternate values for the local part of the e-mail address. The local part of an e-mail address is the name that appears before the at sign (@).

Variable Value


Given name (first name)


Middle initial


Surname (last name)


Display name


Exchange alias


Uses the x number of letters of the surname. For example if x=2, the first two letters of the surname are used.


Uses the x number of letters of the given name. For example, if x=2, the first two letters of the given name are used.

  • Non-SMTP e-mail address. The following types of non-SMTP e-mail addresses are supported:

    • EX (Legacy DN Proxy Address Prefix DisplayName)

    • X.500

    • X.400

    • MSMail

    • CcMail

    • Lotus Notes

    • Novell GroupWise

    • EUM (Unified Messaging proxy address)


In Exchange 2007, all non-SMTP e-mail addresses are considered custom addresses. Exchange 2007 does not provide unique dialog boxes or property pages for X.400, GroupWise, or Lotus Notes e-mail address types. If you add a non-SMTP custom e-mail address, you must have the appropriate dynamic-link library (DLL) files. If you do not provide the appropriate DLL files, you will not be able to create a customized e-mail address policy. The following error will be logged in Event Viewer: "The e-mail address description object in the Microsoft Exchange directory for the 'SADF' address type on 'i386' machines are missing."

  • E-mail address
    Use this box to type the custom e-mail address format. For example *@example;55.
  • E-mail type

    • Use this box to type the e-mail address type. The e-mail address type cannot exceed 9 characters.

    • The e-mail address type is the identifying proxy information for the e-mail address. Exchange uses this information to determine how to process the e-mail address.

For More Information

To learn more about e-mail address policies, see Understanding E-Mail Address Policies.

For more information about e-mail address policies, see Managing E-Mail Address Policies.

For more information about creating a new e-mail address policy, see How to Create an E-Mail Address Policy.