To configure your mobile device i.e. tablets, phablets, phones and PDAs to fetch your mails from your email service provider’s server, you have the option to choose between IMAP and POP.
What is IMAP?
This simply means Internet Message Access Protocol (IMAP) a protocol for e-mail retrieval.
What is POP?
Post Office Protocol (POP) is an application-layer Internet standard protocol used by local e-mail clients to retrieve e-mail from a remote server over a TCP/IP connection.
POP and IMAP are two different protocols used to access email. POP and IMAP function very differently and each has its own advantages. POP is useful in checking emails from a computer that is in a specific location. IMAP is the better option when you need to check your emails from multiple locations, such as at work, from home, or on the road, using different computers.