Multiple choice general knowledge science & technology

Which network protocol is used to send e-mail?

  1. FTP

  2. SSH

  3. SMTP

  4. POP3
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

SMTP (Simple Mail Transfer Protocol) is the standard protocol for sending email between mail servers. The other protocols serve different purposes: FTP is for file transfers, SSH is for secure remote access, and POP3/IMAP are protocols for receiving (not sending) email.

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