IMAP stands for 'Internet Message Access Protocol', which is a method used for accessing email messages from a mail server. When you set up an IMAP email account, the email client (such as Microsoft Outlook, Gmail, or Apple Mail) on your device connects to the mail server and displays a list of your email messages without actually downloading them to your device. This means that you can access your email messages from multiple devices and any changes you make to your messages (such as marking them as read or moving them to a different folder) are reflected across all of your devices. We would recommend IMAP mail over the POP mail option if you view your emails across multiple devices.