IMAP (Internet Message Access Protocol) is used for retrieving email messages from a mail server. It allows users to view and manage their email directly on the server without downloading them to a local device.
An IMAP feature is the ability to synchronize email messages across multiple devices. When a user reads, deletes, or organizes an email on one device, the changes are reflected on all other devices connected to the same email account.
The purpose of POP3 (Post Office Protocol version 3) is to download email messages from a mail server to a local device. Once downloaded, the emails are typically removed from the server, allowing users to access their messages offline.