Simple Mail Transfer Protocol (SMTP) Question:

SMTP is responsible for a little more then just deliver messages to servers. It performs several functions that streamlines the delivery process.

► It evaluates the configuration and grants permission to the computer who is trying to send a message.
► It can also track if the message was sent successfully. If it isn’t, an error message is sent to the sender.
► Extended SMTP is a little more advanced then older versions. It helps cut back on email spam.