What is email system?

Some articles on email:

Emailable - Operation Overview
... She enters the email address of her correspondent, and hits the "send" button ... Her MUA formats the message in email format and uses the Submission Protocol (a profile of the Simple Mail Transfer Protocol (SMTP), see RFC 6409) to send the message to the local mail submission agent (MSA), in ... An Internet email address is a string of the form localpart@exampledomain ...

Famous quotes containing the word system:

    It would be enough for me to have the system of a jury of twelve versus the system of one judge as a basis for preferring the U.S. to the Soviet Union.... I would prefer the country you can leave to the country you cannot.
    Joseph Brodsky (b. 1940)