Reads an mbox mailbox file — the classic format many email clients export a whole mailbox to as one file — and lists every message it contains.
Browsing an exported mailbox's contents without importing it back into an email client.
Drop an .mbox file. Every message appears with its headers and body.
Splits messages on genuine "From " separator lines only — a quoted ">From " inside a message body is correctly left alone rather than mistaken for a new message boundary.