Abstract: An improved mailbox comprising a first tubular shaped compartment (18) with side walls and a flat bottom (50), a hinged front door (22) and a first pivotal flag assembly (170, FIG. 10) which is normally raised by the homeowner when he places mail in the mailbox for the postman to pick up and then lower the flag assembly, a second pivotal flag assembly (24), a first cable arrangement (40) responsive to opening of the front door to raise the second flag assembly (24) and leave it raised when the front door is closed to advise the homeowner that the postman has come, and a fastening arrangement (156 FIG. 9) for disabling the first cable arrangement by the homeowner when he is away from home, so no one will know that mail is in the mailbox. A second compartment (92) positioned below the first compartment (90) comprises a lockable rear door (112) therein. The flat bottom of the first compartment (90) is separated longitudinally along its length into first and second substantially equal sections (60 and 62 FIG.