Definition: "McMail" was a name for a mail system used to send messages over long distances without the use of wires, thus creating an encrypted communication channel between two devices. It allowed messages to be sent directly from a personal email account to a recipient's computer or other device over an insecure network. The term "mail" refers to letters sent by post office employees, and while it has been replaced with terms like "Email," it remains part of the email landscape for its historical and cultural significance.
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