Multiple choice general knowledge science & technology

You are getting unwanted mails in your default outlook email client and you don’t want it. Which port will you ban if don’t want ANY mail?

  1. 443

  2. 139

  3. 110

  4. 80
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Port 110 is used by POP3 (Post Office Protocol version 3) for receiving email. If you want to block ALL email, you'd also need to block port 25 (SMTP for sending) and port 143 (IMAP for receiving). The question only asks about one port, and 110 is the standard POP3 port for incoming mail.

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