Which abbreviation represents the secure version of the Simple Mail Transfer Protocol?

Which abbreviation represents the secure version of the Simple Mail Transfer Protocol?

• A. Secure Sockets Layer
• B. Simple Mail Transfer Protocol
• C. Secure File Transfer Protocol
• D. SMTPS

Answer: (D)

Securing mail transfer uses encryption to protect the content as it moves between servers. The abbreviation that denotes the secure variant of Simple Mail Transfer Protocol is SMTPS, meaning SMTP over TLS/SSL. This signals that the mail transfer session is encrypted, protecting credentials and message data in transit. The other options refer to unrelated protocols or the non-secure SMTP itself, so SMTPS is the correct choice for the secure version of SMTP.

Securing mail transfer uses encryption to protect the content as it moves between servers. The abbreviation that denotes the secure variant of Simple Mail Transfer Protocol is SMTPS, meaning SMTP over TLS/SSL. This signals that the mail transfer session is encrypted, protecting credentials and message data in transit. The other options refer to unrelated protocols or the non-secure SMTP itself, so SMTPS is the correct choice for the secure version of SMTP.