Microsoft KB Archive/223860

= XCON: SMTP Postmaster Mailbox Must Be Set Manually =

Article ID: 223860

Article Last Modified on 2/27/2007

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APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition

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This article was previously published under Q223860





SYMPTOMS
To designate a user's mailbox as the Postmaster mailbox for any local SMTP domain that is created, you must manually add the proxy postmaster@ (replacing   with the name of the local domain) to the user's list of SMTP proxy addresses in the Active Directory Users and Computers snap-in.



RESOLUTION
To designate a mailbox as the Postmaster mailbox:
 * 1) In Active Directory Users and Computers, expand the domain, and then click the container.
 * 2) Right-click the mailbox-enabled object, and click Properties from the shortcut menu.
 * 3) Click the E-mail Addresses tab, and then click New.
 * 4) In New E-mail Address, select SMTP Address, and then click OK.
 * 5) Type the proxy e-mail address, for example: postmaster@test.com.
 * 6) Click OK.



MORE INFORMATION
The following is taken from RFC 822:   6.3. RESERVED ADDRESS

It often is necessary to send mail to a site, without knowing any of its valid addresses. For example, there may be mail system dysfunctions, or a user may wish to find out a person's correct address, at that site.

This standard specifies a single, reserved mailbox address (local-part) which is to be valid at each site. Mail sent to that address is to be routed to a person responsible for the site's mail system or to a person with responsibility for general site operation. The name of the reserved local-part address is:

Postmaster

so that "Postmaster@domain" is required to be valid.

Note: This reserved local-part must be matched without sensi- tivity to alphabetic case, so that "POSTMASTER", "postmas-           ter", and even "poStmASteR" is to be accepted.

Keywords: kbprb KB223860

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