If you're looking for an explanation, the closest thing I've found is
the following APAR:
It's not a great explanation (to put it mildly). But it provides some
information, at least.
On 5/2/2011 9:54 AM, Jeff Crosby wrote:
Upgraded to V7R1 over the weekend. I tested email sending yesterday by
sending emails to my gmail address and it worked, so I thought all was
It was not.it.
The System i was unable to send emails this morning to anyone with a
dilgardfoods.com email address. I opened a PMR with IBM and they solved
Among the many parameters on the CHGSMTPA ("Change SMTP Attributes")
on the System i, there are 2 parameters that confuse customers. Theyare:
1) "Mail router" which was set to oursmtprelay.nottellingyou.blahblah.
parameter tells the System i "Where should I send mail when I can'tresolve
2) "Forwarding mailhub server" which specifies where ALL mail should be
sent. This was blank.
He said customers tend to see "mail router" and think all mail will be
there. Not the case. We put oursmtprelay.nottellingyou.blahblah in theall
forwarding mailhub server parameter as well because that's where we want
email to go. Cycled SMTP and all was well.these
Evidently something changed from V6R1 to V7R1 in the functionality of
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