I have a proprietary POS (Point of Sale) system that has a module to email sales receipts to our customers. I am trying to use our Exchange Server 2010 for sending outgoing message from the POS using SMTP. It's not working and the tech support from the POS vendor are stumped.
The POS uses the following parameters to connect to Exchange Server:
Server Name: mail.mydomain.com
SMTP Username: John.Smith@mydomain.com
Password: (Windows Password)
SMTP Port: 587
Use SSL: Yes
Exchange Server is configured with these parameters.
The only issue I can think of is some kind of authentication error. We have implemented Active Directory. The username is mydomain\johns and Exchange Server has the primary SMTP as John.Smith@mydomain.com. The POS is not sending the username as a parameter when it tries to email using Exchange Server. Is there anywhere within Exchange Server that logs any authentication errors from requests coming from external programs?