LX0-104 · Question #540
Which of the following is NOT a Mail Transport Agent?
The correct answer is E. mail. mail is typically a Mail User Agent (MUA) used for reading and sending emails, whereas Exim, Postfix, Sendmail, and Qmail are Mail Transport Agents (MTAs) that handle the actual routing and delivery of emails between servers.
Question
Options
- Aexim
- Bpostfix
- Csendmail
- Dqmail
How the community answered
(29 responses)- A3% (1)
- C3% (1)
- D3% (1)
- E90% (26)
Why each option
`mail` is typically a Mail User Agent (MUA) used for reading and sending emails, whereas Exim, Postfix, Sendmail, and Qmail are Mail Transport Agents (MTAs) that handle the actual routing and delivery of emails between servers.
Exim is a well-known open-source Mail Transfer Agent (MTA) used on Unix-like operating systems.
Postfix is a popular open-source Mail Transfer Agent (MTA) designed as a faster, easier-to-administer, and more secure alternative to Sendmail.
Sendmail is one of the oldest and most widely used Mail Transfer Agents (MTAs) on Unix-like systems.
Qmail is an older, secure, and reliable Mail Transfer Agent (MTA) designed as an alternative to Sendmail.
`mail` (or `mailx` on some systems) is a command-line utility that acts as a Mail User Agent (MUA), allowing users to compose, send, and read emails. It does not perform the role of a Mail Transport Agent (MTA), which is responsible for transferring email between servers.
Concept tested: Mail Transport Agents vs. Mail User Agents
Source: https://www.postfix.org/OVERVIEW.html
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