What does POP3 and IMAP4 stands for?
What are its relevance in emails and how do these two function?
Are all emails integrated with these two, or only one of them is being used per e-mail type or server?
IMAP is abbreviation for Internet Message Access Protocol, number 4 stands for version of IMAP and POP is abbreviation for Post Office Protocol and number 3 is designation of POP version. These two are e-mail internet standard protocols that e-mail clients use for transferring e-mail messages to and from a specific remote e-mail server.
These protocols are necessary for communication between your computer and remote e-mail server in two directions. Most of e-mail servers support both protocols.
IMAP is used for accessing the message on the remote mail server, and POP is used for retrieving it from the mail server and storing in your e-mail client’s inbox. Both of these protocols are required for sending and retrieving of e-mail messages. So, if you don’t assign IMAP and POP in your e-mail client, you won’t be able to send and receive e-mail messages.
