What is POP?

Post Office Protocol in short POP  is  the technology that is used for communication in the form of email. Email is the most wanted service over internet in the entire world. For running the mail on the net, it needs  to  a special language for sending and receiving mail that is known as POP. POP  is  in the network programming language. 

It is the protocol that allows the computer to communicate the email server for uploading and  downloading the message whenever  it is connected to the computer. POP  has  the ability to download all of  the  messages onto a local computer.  So that  the users can view all the downloaded messages on their system whenever  they want to  view in the absence of   internet connection. POP has a small email server with some limited space that saves the money of the consumer or company. 

POP has one drawback that  it download the mail on the individual system, and if you don't have that system in the other place, you can't see your mail.  So this technology is beneficial  when  you  have your  system and don't have internet connection.  The only solution  of  this problem is to  have IMAP and Microsoft Exchange Server email accounts that  allows the user to  read all email  directly from the server and the user can read all his/her mail from anywhere no matter what computer the user is using, but internet connection must be there.