One of your users can receive mail but can't send any. You notice that the "Type of Outgoing Mail Server" field is blank in the mail application. Which of the following protocols will you most likely enter as a value in this field?

One of your users can receive mail but can't send any. You notice that the "Type of Outgoing Mail Server" field is blank in the mail application. Which of the following protocols will you most likely enter as a value in this field?

• IMAP
• POP3
• NMP
• SMTP

EXPLANATION

 

POP In computing, the Post Office Protocol is an application-layer Internet standard protocol used by e-mail clients to retrieve e-mail from a server in an Internet Protocol network. POP version 3 is the most recent level of development in common use. POP has largely been superseded by the Internet Message Access Protocol.

 

IMAP In computing, the Internet Message Access Protocol is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection. IMAP is defined by RFC 3501.

  SMTP is used to send email and is a protocol within the TCP/IP protocol suite. POP3 and IMAP are email retrieval protocols, not protocols for sending email.