What is the abbreviation for Simple Mail Transfer Protocol?

What is the abbreviation for Simple Mail Transfer Protocol?

• A. SID
• B. SMTP
• C. SSL
• D. SFTP

Answer: (B)

Email delivery between servers uses the Simple Mail Transfer Protocol, abbreviated SMTP. This protocol is the standard mechanism for sending and relaying email messages across the Internet, including from a client to a mail server and between servers as the message makes its way to the recipient. The other terms refer to different concepts: SID isn’t an email protocol, SSL is a security layer for encrypting connections, and SFTP is a file transfer protocol over SSH. So SMTP is the correct abbreviation for Simple Mail Transfer Protocol.

Email delivery between servers uses the Simple Mail Transfer Protocol, abbreviated SMTP. This protocol is the standard mechanism for sending and relaying email messages across the Internet, including from a client to a mail server and between servers as the message makes its way to the recipient. The other terms refer to different concepts: SID isn’t an email protocol, SSL is a security layer for encrypting connections, and SFTP is a file transfer protocol over SSH. So SMTP is the correct abbreviation for Simple Mail Transfer Protocol.