Configuring the SMTP server (SMTPD)

Guideline: Start of changeIBM® has issued a statement of direction that indicates that SMTPD will be withdrawn in a future release. Take one of following actions based on the way you choose to process mail on z/OS®:
  • If you configure a mail server for the first time, use CSSMTP.
  • If you use SMTPD to configure a mail server, migrate SMTPD to CSSMTP. For more information about migrating from SMTPD to CSSMTP, see Withdrawal of SMTPD and sendmail.
End of change
Before you configure: Read Understanding search orders of configuration information. It covers important information about data set naming and search sequences.

Before configuring the SMTP server, it is assumed that the necessary SYS1.PARMLIB changes have been made. Consult the Program Directory for current information about the storage estimates for this version. The Program Directory also contains information about customization of certain SYS1.PARMLIB members, which must be completed before the initial program load (IPL) for the MVS™ image.

The SMTP server uses the Pascal socket API, so VMCF must be started for the server to successfully initialize. If VMCF is not started, message EZY1980E will be issued and the server will terminate.

If you have specified PROFILE NOINTERCOM in your TSO user ID's profile, then there are some SMTP server messages that you will not receive.

Parent topic: Mail on z/OS