Why does my custom SMTP server not work in Notification Center?
Applicable Products
Notification Center
Solution
If you have added a custom SMTP server to Notification Center and are unable to send test emails, you should confirm that these settings match those of your SMTP server.
Common mistakes with setting custom SMTP servers are what values are used for Secure connection, Port number, and Username.
No secure connection
When Secure connection is set to None, the Username should not contain the full email address.
SSL
When Secure connection is set to SSL, the Username should contain the full email address.
TLS
When Secure connection is set to TLS, the Username should contain the full email address.