IMAP (Internet Message Access Protocol) handles messages moved from one folder to another by updating the message’s flags and changing its location in the mailbox. When a message is moved from one folder to another, the IMAP server updates the UID (unique identifier) of that message and sends a notification to the email client indicating the changes made. The message’s flags, such as read/unread, replied/not replied, and flagged/unflagged, are also updated to reflect the new folder. This ensures that the email client always displays accurate information about the message’s status, location, and metadata. IMAP allows users to manage their email efficiently by easily organizing messages into folders and subfolders, and the protocol ensures that all changes are synchronized in real-time across all devices that are connected to the same mailbox.
