Difference between revisions of "Mail server"

Revision as of 13:39, 22 June 2019

A mail server (hereinafter, the Server) is any digital construct that is located in a computer network under its distinguishable hostname in order to accept, analyze, adjust, clarify, and transfer electronic mail messages (or, simply, emails) from mail user agents (MUAs) to mail exchangers (MX hosts) and vice versa.

The Server can also refer to mail server software. More broadly, email software may refer to all the software utilized for MUAs, the Servers, or mail exchangers.

To communicate with:

Mail exchangers, all the Servers use the Simple Mail Transfer Protocol (SMTP).
Mail user agents (MUAs), the Servers use a variety of protocols, most commonly, POP3 and/or IMAP.

With regard to:

Outgoing messages, the Servers may be designed to:
1. Accept messages from mail user agents.
2. Analyze messages looking for their inconsistencies and/or missing data.
3. Adjust messages while correcting inconsistencies and/or adding the missing data.
4. Transfer messages to mail exchangers.
Incoming messages, the Servers may be designed to:
1. Accept messages from mail exchangers.
2. Analyze messages looking for their inconsistencies and/or missing data.
3. Add information about the found inconsistencies and/or missing data to the messages.
4. Transfer messages to mail user agents.

Depending on their functionality, the Servers are hosted in two types of locations:

Mail submission agent (also known as outgoing mail server, message submission agent or by its acronym MSA), which is a computer application used to accept, analyze, correct, and send emails that end-users enter into their MUAs;
Mail transfer agent (also known as message transfer agent or by its acronym MTA), which is a computer application used to transfer emails between computers;
Mail delivery agent (also known as incoming mail server, message delivery agent or by its acronym MDA), which is a computer application used to deliver an email to its recipient's MUA.

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−	A [[mail server]] (hereinafter, the ''Server'') is any digital construct that is located in a computer network under its distinguishable [[hostname]] in order to accept, analyze, adjust, and transfer [[email\|electronic mail message]]s (or, simply, [[email]]s) from [[mail user agent]]s ([[mail user agent\|MUA]]s) to [[mail exchanger]]s ([[mail exchanger\|MX host]]s) and vice versa.	+	A [[mail server]] (hereinafter, the ''Server'') is any digital construct that is located in a computer network under its distinguishable [[hostname]] in order to accept, analyze, adjust, clarify, and transfer [[email\|electronic mail message]]s (or, simply, [[email]]s) from [[mail user agent]]s ([[mail user agent\|MUA]]s) to [[mail exchanger]]s ([[mail exchanger\|MX host]]s) and vice versa.

	The ''Server'' can also refer to [[mail server software]]. More broadly, [[email software]] may refer to all the software utilized for [[mail user agent\|MUA]]s, the ''Servers'', or [[mail exchanger]]s.		The ''Server'' can also refer to [[mail server software]]. More broadly, [[email software]] may refer to all the software utilized for [[mail user agent\|MUA]]s, the ''Servers'', or [[mail exchanger]]s.