Re: Trouble delivering email.

[Pete Helgren <pete@xxxxxxxxxx>]

I've got nothing specific for IBM i but I have fought the email delivery 
battle many, many times.  Biggest issue is a change of IP address either 
to one that had a bad reputation, or new enough address that it had no 
reputation at all.

I assume you have the basic's covered:  SPF configured, DKIM in use and 
a DMARC record...I JUST got bit by a reverse DNS issue.  I use JavaMail 
and it is pretty verbose about what the cause of the delay or bounce 
is.  Don't know about how much info you get from the IBM i SMTP 
server....sounds like "not much".

Pete Helgren
www.petesworkshop.com
GIAC Secure Software Programmer-Java
Twitter - Sys_i_Geek  IBM_i_Geek

On 10/24/2018 1:24 PM, Nathan Andelin wrote:
> We have hundreds of entries in the WRKSMTPEMM screen, showing email of type
> *RLY in queue *RTY. which date back to 10/08/2018.
>
> I've been using option 8 to display log entries pertaining to email
> entries, but I don't understand many of the log entries. Connections to
> email domains appear to be retried over and over, without success. As far
> as I can tell, the log doesn't indicate whether a recipient domain is
> rejecting the messages, or not.
>
> Sometimes mail is delivered as expected, other times, not! Delivering to
> Yahoo appears to be particularly problematic.
>
> Are we missing something fundamental?