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PRESENTATION ON POP 3
(POST OFFICE PROTOCOL 3)
Sujan Katwal
720346
Introduction
 It is the most recent version of a standard protocol for receiving e-mail
working on Application Layer
 Used by local email software to retrieve emails from a remote mail
server over a TCP/IP connection
 POP3 is a client/server protocol in which e-mail is received and held
for you by your Internet server
 The conventional port number for POP3 is 110
 Common Clients Using POP3 • Eudora • Gmail • Outlook Express •
Mozilla Thunderbird • Netscape • Internet Explorer.
History Of POP
 The Post Office Protocol has been updated 2 times since it was first published
 POP : Post Office Protocol: published 1984
 POP2: Post Office Protocol: published 1985
 POP3: Post Office Protocol: published 1988.
 So, POP3 means "Post Office Protocol – Version 3"
 Since 1988, POP3 has been the active version.
How Does POP Work?
 Incoming messages are stored at a POP server until the user logs in using an
email client and downloads the messages to their computer
 After user downloads the message, it is deleted from the server
 SMTP is used to transfer email messages from server to server
 POP is used to collect mail with an email client from a server
 POP3 is designed to delete mail on the server as soon as the user has
downloaded it.
 However, some implementations allow users or an administrator to specify
that mail be saved for some period of time.
 POP can be thought of as a "store-and-forward" service.
Advantages Of POP
 POP3 does not require an internet connection for accessing the downloaded
mails.
You can read your mail without being logged onto the Internet
There is no advertising when you read your email
There is not a maximum size on your mailbox
Messages are stored on your hard Drive.
Disadvantages Of POP
 Not possible to access the same email account from multiple
devices and have actions synchronize between them
All messages are stored on your hard drive eating up what
is sometimes very valuable
 Potential danger of virus attack if mails are not properly
scanned
Email folders can become corrupted and sometimes lost
forever.
THANK YOU

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Pop 3(post office protocol 3)

  • 1. PRESENTATION ON POP 3 (POST OFFICE PROTOCOL 3) Sujan Katwal 720346
  • 2. Introduction  It is the most recent version of a standard protocol for receiving e-mail working on Application Layer  Used by local email software to retrieve emails from a remote mail server over a TCP/IP connection  POP3 is a client/server protocol in which e-mail is received and held for you by your Internet server  The conventional port number for POP3 is 110  Common Clients Using POP3 • Eudora • Gmail • Outlook Express • Mozilla Thunderbird • Netscape • Internet Explorer.
  • 3.
  • 4. History Of POP  The Post Office Protocol has been updated 2 times since it was first published  POP : Post Office Protocol: published 1984  POP2: Post Office Protocol: published 1985  POP3: Post Office Protocol: published 1988.  So, POP3 means "Post Office Protocol – Version 3"  Since 1988, POP3 has been the active version.
  • 5. How Does POP Work?  Incoming messages are stored at a POP server until the user logs in using an email client and downloads the messages to their computer  After user downloads the message, it is deleted from the server  SMTP is used to transfer email messages from server to server  POP is used to collect mail with an email client from a server  POP3 is designed to delete mail on the server as soon as the user has downloaded it.  However, some implementations allow users or an administrator to specify that mail be saved for some period of time.  POP can be thought of as a "store-and-forward" service.
  • 6.
  • 7. Advantages Of POP  POP3 does not require an internet connection for accessing the downloaded mails. You can read your mail without being logged onto the Internet There is no advertising when you read your email There is not a maximum size on your mailbox Messages are stored on your hard Drive.
  • 8. Disadvantages Of POP  Not possible to access the same email account from multiple devices and have actions synchronize between them All messages are stored on your hard drive eating up what is sometimes very valuable  Potential danger of virus attack if mails are not properly scanned Email folders can become corrupted and sometimes lost forever.