SMTP: Prepare for the removal of SMTPD NJE Mail Gateway and Sendmail

Description

z/OS V2R2 is the last release in which the Simple Mail Transport Protocol Network Job Entry (SMTPD NJE) Mail Gateway and Sendmail mail transports is planned to be supported. If you use the SMTPD NJE Gateway to send mail, IBM recommends that you use the CSSMTP SMTP NJE Mail Gateway instead. CSSMTP provides functional and performance improvements, and is designed so that application programming changes are not required.

No replacement functions are planned for the SMTPD or Sendmail listener support; these functions allow for receiving mail for delivery to local TSO/E or z/OS UNIX System Services user mailboxes, or for forwarding mail to other destinations.

Table 1 provides more details about this migration action. Use this information to plan your changes to the system.

Table 1. Information about this migration action
Element or feature:	z/OS Communications Server.
When change was introduced:	24 February 2014 in U.S. Announcement Letter 114-009.
Applies to migration from:	z/OS V2R1 and z/OS V1R13.
Timing:	Before installing z/OS V2R2.
Is the migration action required?	No, but recommended if you are using the SMTPD NJE Gateway function.
Target system hardware requirements:	None.
Target system software requirements:	None.
Other system (coexistence or fallback) requirements:	None.
Restrictions:	None.
System impacts:	None.
Related IBM® Health Checker for z/OS® check:	ZOSMIGV2R2_Next_CS_SENDMAILDAEMN ZOSMIGV2R2_Next_CS_SENDMAILCLIEN ZOSMIGV2R2_Next_CS_SENDMAILMTA ZOSMIGV2R2_Next_CS_SENDMAILMSA ZOSMIGV2R2_Next_CS_SMTPDDAEMON ZOSMIGV2R2_Next_CS_SMTPDMTA

Steps to take

If you are using the SMTPD NJE Gateway, migrate to the existing CSSMTP SMTP NJE Mail Gateway.

Reference information

For more information, see Statement of direction: IBM zEnterprise System, z/OS, and z/VM enhancements shorten time to value, deliver enhanced security, and improve data access 114-009 February 24, 2014.

For information about the functions supported by CSSMTP, see the "Communications Server SMTP server" chapter of z/OS Communications Server: IP Configuration Reference and the "Mail on z/OS" chapter of z/OS Communications Server: IP Configuration Guide .