Determine if SmarterMail 16+ is being used as an open relay
Categories: Blog |
Author:
Administrator Account |
Posted:
10/6/2017 |
Views:
3244
Look at Reports -> Message Traffic. Look at the total number of messages being sent under Trend mode. Then switch to Domain mode and verify the numbers are similar.
Search your Delivery Logs (Manage -> Troubleshooting -> View Logs) for "Sending remote mail" and verify all the email addresses involved are valid for your server.
Check your Spool - you may have a bunch of emails trying to go to invalid email addresses.