Advantages of Microsoft Exchange over IMAP, POP
Before proceeding, however, let’s take a look at Microsoft Exchange and the advantages it has over other email systems such as POP and IMAP.
If you have familiar with POP email you will know that messages appear in your inbox each time the mail server is polled by your email client. These messages are typically deleted from the server (as a storage management measure) when downloaded, and will exist only on your computer.
Meanwhile IMAP accounts allow you to synchronize an email server with an email client on a computer or mobile phone. This synchronization means that you can move emails into folders and this is reflected on the mail server; this is a great way to access the same account and see the same emails in the correct places but from many different devices. Like POP, IMAP has to poll the email server.
Exchange, meanwhile, closely resembles IMAP, but rather than having to connect to the web to check for email messages, Exchange sends the messages to the computer or mobile device as they are received. As such, emails are immediately delivered and can be replied to quickly rather than be delayed by the typical 15 minute check usually found on IMAP and POP accounts.