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GCSE Computer Science/Paper 1/Wired and wireless networks, protocols and layers

SMTP (Simple Mail Transfer Protocol)

Common protocols: SMTP (Simple Mail Transfer Protocol)

1.3.2 Wired and wireless networks, protocols and layers

Practise exam questions

Wired and wireless networks, protocols and layers — Note 12 of 13

What you need to know

SMTP (Simple Mail Transfer Protocol) is used for sending emails. It handles the delivery of outgoing emails from your email client to the recipient's email server.

What to know

  • SMTP handles OUTGOING email only. POP and IMAP handle INCOMING email.
  • SMTP delivers emails from your email client to the recipient's email server.

Key terms

Exam tipCommon mistake

SMTPSimple Mail Transfer Protocol

The protocol used for SENDING emails from one email server to another across the Internet.

  • Exam tip: SMTP = SENDING. POP/IMAP = RECEIVING. A common exam question is to identify which protocol is used in each direction.

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Revise another OCR GCSE topic: Networks and topologies

Wired and wireless networks, protocols and layers

Note 12 of 13

  1. 1Wired - Ethernet; Wireless - Wi-Fi, Bluetooth;
  2. 2Encryption
  3. 3IP addressing and MAC addressing
  4. 4Standards
  5. 5Common protocols
  6. 6TCP/IP (Transmission Control Protocol/Internet Protocol)
  7. 7HTTP (Hyper Text Transfer Protocol)
  8. 8HTTPS (Hyper Text Transfer Protocol Secure)
  9. 9FTP (File Transfer Protocol)
  10. 10POP (Post Office Protocol)
  11. 11IMAP (Internet Message Access Protocol)
  12. 12SMTP (Simple Mail Transfer Protocol)
  13. 13The concept of layers
Topic overview

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