Undelivered internet email notification with AS/400 SMTP

We have successfully setup our AS/400 SMTP using the Configuring OS/400 SMTP 
IBM technical document (21111802).  We will only be using the AS/400 to send 
emails from a third party AS/400 application.  We will continue to send and 
receive all other emails from the Exchange server.  We set up SMTP using the 
filtering firewall scenario in the document because our network staff did not 
want to allow relaying through the Exchange server (also one less point of 
failure).  Our SNDDST test emails are working correctly to our test internet 
addresses (outside of our organization).

The only question we have is how can we determine if an email is not delivered? 
 I have sent emails to an invalid email address and the entries in the 
dspdstlog are identical to the entries of delivered email.  Once the AS/400 
application is live, it would be nice to know if we have an invalid email 
address and the email wasn't devlivered.  

Thanks for any suggestions or assistance.


Diana Hicks
Town of Jupiter
 
IBM Certified Specialist-AS/400 RPG IV Programmer
IBM Certified Specialist-AS/400 System Administrator