What is a POP folder in Hotmail account?

A POP folder in a Hotmail account refers to the location where emails that are accessed via the Post Office Protocol (POP) are stored. When you configure a mail client to retrieve emails using POP, the messages are downloaded from the Hotmail server to your local device, allowing you to read them offline. Typically, once downloaded, the emails may be removed from the server, depending on the client's settings. This differs from IMAP, which syncs emails across devices while keeping them stored on the server.