On Thu, 18 Jun 2009 09:43:11 -0700, Ulrich Krueger <[email protected]> wrote:

>...
>What is your setting of RESOLVERUSAGE?
>I believe the value of this parameter needs to be changed if you want to use
>
>"IPMAILERNAME xxx.com ALL|UNKNOWN" vs IPMAILERADDRESS
>...

Yes.  If you are going to use IPMAILERNAME you must specify
RESOLVERUSAGE YES.  Otherwise the SNMP daemon will not try to
resolve the name.   But you may not want to do this.

In my previous shop (as set up by me) and my current shop (as set up
by others) we used IPMAILERADDRESS and (once the parm became
available) RESOLVERUSAGE NO because of problems introduced by
RESOLVERUSAGE YES.  We are reeducating ourselves on the topic
because we could not remember what those problems were.

As I read it you may have trouble even if the name is resolved.
If you enable the SMTP daemon's  name resolution it will not only
resolve names, it will also attempt to get "mail exchange" (MX)
records from the name server and try to send emails to mail
transfer agent (MTA) closest to the recipient rather than sending the
emails to the mailer you defined.  If either end has firewalls or
access lists in place they very likely will prevent your use of those
remote MTAs.   

There does not seem to be any way to tell the z/OS SMTP daemon
to resolve the mail of your defined "mailer" and use it for all outbound
mail.

IBM is providing a new SMTP daemon (with z/OS 1.11?).  Hopefully
they will have addressed this problem by then.

Pat O'Keefe   

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