I have set up the SMTP setting for my local SMTP server they way I have with other applications, trying both the FQDN of the mailserver and the IP address. My submission port is 587. I have tried various permutations of the "fnmae lastnam:finamlastername@example.com " mail format. I consistently get an "Mail server failure [[SMTP_ERRORS--1]]" "Notification send mail failed. My settings were working fine on my ISY994x. My local mail server does not require authentication so there are no credentials.
Is there a better log to review somewhere to understand what is happening and why this is failing?
Thank you for any tips, pointers, or solutions.