SMTP Server Setup
God Bless America
Setting up your OS/390 or z/OS SMTP Server can be a challenge. Fortunately the IBM documentation is fairly good and when that fails the IBM Support is outstanding. The one thing that is not always clear is that the SMTP server will, by default, send all the e-mail that is processes directly to the recipients e-mail server, something that is not always desirable. When it does that there are two challenges
This page describes briefly how to configure OS/390 and z/OS SMTP to route all outgoing e-mail to your existing in-house e-mail server which solves both of these issues,
SMTP will now forward all mail for which it is unable to resolve the target host name to the server defined in the IPMAILERADDRESS.