The name of the delivery server. This is for internal use only. Make sure you name your delivery servers with a notation to keep everything organized as your delivery server count grows.
The IP address (or hostname) of your SMTP server.
Usually this is 25 or 587. Please check for the correct port number with your SMTP provider service.
Choose the correct security mode based on your SMTP service provider. If they force TLS connection (ex: Amazon SES), make sure you choose the TLS option.
Number of seconds to wait until the SMTP connection is made. 10 seconds is the default value.
If your SMTP service provider requires a username and password to connect, enable the authentication mode and enter your SMTP username and password.