Any ideas on how to troubleshoot periodic failed SMTP delivery messages from PPM?
We have been using PPM for many years. Within the past month we started receiving failed delivery messages in Lotus Notes. We are sending notifications from PPM to a SMTP server, which forwards to our Notes servers. All mail is internal. All notifications are being sent from workflow steps. We are receiving failed messages on random workflows & workflow steps. I cannot find any common link between the failures. We checked with our internal email team and they couldn't find anything wrong. In fact, they found the messages were successfully delivered. Has anyone experienced similar issues / or know how to troubleshoot this from PPM? I have checked the knta_notif_txn_details but cant seem to find anything. The message we receive in Notes is "Returned Mail from HP Project and Portfolio Management" Unable to send the following message to: ...... When notifications are sent from PPM to SMTP, is there any confirmation back to PPM? I didn't think there was with SMTP.