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- DDN MGT Bulletin: 9507 DISA DDN Defense Communications System
- 25 April 1995 Published by: DDN Network Info Center
- (NIC@NIC.DDN.MIL) (800) 365-3642
-
- DEFENSE DATA NETWORK
- MANAGEMENT BULLETIN
-
- The DDN MANAGEMENT BULLETIN is distributed online by the DDN Network
- Information Center under DISA contract as a means of communicating
- official policy, procedures and other information of concern to
- management personnel at DDN facilities. Back issues may be read
- through the TACNEWS server ("@n" command at the TAC) or may be
- obtained by FTP (or Kermit) from the NIC.DDN.MIL host [192.112.36.5]
- using login="anonymous" and password="guest". The pathname
- for bulletins is ddn-news/ddn-mgt-bulletin-nn.txt (where "nn" is the
- bulletin number).
-
- ***********************************************************************
-
- SUBJECT: DoD-Wide Implementation of the SMTP Postmaster Convention
-
- REQUEST NODE SITE COORDINATORS AND HOST ADMINISTRATORS DISSEMINATE THIS
- INFORMATION TO ALL E-MAIL HOST ADMINISTRATORS. THIS IS ONE OF SEVERAL
- ANNOUNCEMENTS DESIGNED TO IMPROVE E-MAIL SERVICES WITHIN THE DOD.
-
- 1. In compliance with Request for Comment (RFC) 1123 (Requirements for
- Internet Hosts--Application and Support), RFC 1173 (Responsibilities of
- Host and Network Manager), and RFC 822 (Standard for ARPA Internet Text
- Messages), all SMTP e-mail hosts connected to DDN/DISN or within the .MIL
- domain, are required to establish a Postmaster account.
-
- a. It often is necessary to send mail to a site, without knowing any
- of its valid addresses. For example, there may be mail system dysfunction,
- or a user may wish to find out a person's correct address, at that site.
-
- b. The 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 sensitivity to
- alphabetic case, so that "POSTMASTER", "postmaster", and even "poStmASteR"
- is to be accepted.
-
- 2. The establishment of the Postmaster account on DOD e-mail hosts will
- allow the DDN NIC to promulgate pertinent information regarding e-mail
- management and improvements to the DOD community.
-
- 3. Please refer any technical questions to the DDN Network Information
- Center at 1-800-365-3642 (1-800-365-DNIC). POC for this bulletin is Maj
- Paciorkowski, DISA/WE3353, (703)735-8065/DSN 653-8065.
-
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