For sending and receiving messages, we use two protocols one is SMTP (Simple Mail Transfer Protocol) and another is POP3 (Post Office Protocol version 3). They are also called as PUSH and POP protocols respectively. They are agents, Message Transfer Agent and Message Access Agent respectively to send and retrieve the messages.
Difference between SMTP and POP3:
|1.||SMTP stands for Simple Mail Transfer Protocol.||POP3 stands for Post Office Protocol version 3.|
|2.||It is used for sending messages.||It is used for accessing messages.|
|3.||The port number of SMTP is 25.||The port number of POP3 is 110.|
|4.||It is a MTA (Message Transfer Agent) for sending the message to the receiver.||It is MAA (Message Access Agent) for accessing the messages from mail box.|
|5.||It has two MTAs one is client MTA (Message Transfer Agent) and second one is server MTA (Message Transfer Agent).||It has also two MAAs one is client MAA (Message Access Agent) and another is server MAA(Message Access Agent).|
|6.||SMTP is also known as PUSH protocol.||POP3 is also known as POP protocol.|
|7.||SMTP transfers the mail from sender’s computer to the mail box present on receiver’s mail server.||POP3 allows to retrieve and organize mails from mailbox on receiver mail server to receiver’s computer.|
|8.||It is implied between sender mail server and receiver mail server.||It is implied between receiver and receiver mail server.|
Attention reader! Don’t stop learning now. Get hold of all the important CS Theory concepts for SDE interviews with the CS Theory Course at a student-friendly price and become industry ready.
- Differences between POP3 and IMAP
- What are the differences between HTTP, FTP, and SMTP?
- Simple Mail Transfer Protocol (SMTP)
- SMTP Responses
- SMTP Commands
- Difference between Stop and Wait, GoBackN and Selective Repeat
- Difference between Stop and Wait protocol and Sliding Window protocol
- Similarities and Difference between Java and C++
- Difference between Yaacomo and and XAP
- Difference between VoIP and and POTS
- Difference and Similarities between PHP and C
- Difference between ++*p, *p++ and *++p
- Difference Between DOS and Windows
- Difference between User Level thread and Kernel Level thread
- What’s difference between The Internet and The Web ?
- Difference between Priority Inversion and Priority Inheritance
- What’s difference between Linux and Android ?
- What’s difference between header files "stdio.h" and "stdlib.h" ?
- Difference between HTML and HTTP
- Difference between http:// and https://
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to email@example.com. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.