Describe the differences between Mail Transfer Agents (MTAs), Mail Delivery Agents (MDAs), and Mail User Agents (MUAs).? Provide examples of each.

What will be an ideal response?


E-mail is distributed via a network of e-mail servers, also known as Mail Transfer Agents (MTAs). ?Many MTAs are freely available for Linux, including sendmail, postfix, smail,and exim. Before the user can access his e-mail, it must be downloaded from a MTA; the service that provides this is known as a Mail Delivery Agent (MDA). Linux also provides several of these services; procmail and fetchmail are two of the most common. Finally, the user views her e-mail using a program known as a Mail User Agent (MUA). Common MUAs available for Linux include mutt, pine, printmail, elm, mail, Netscape, and Eudora.

Computer Science & Information Technology

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