Enhanced-security delivery receptacles with brick-in feature

An enhanced-security delivery receptacle, comprising:

• an upper compartment;
• an upper compartment opening selectively scaled by at least one upper compartment pivotable door;
• a lower compartment;
• a lower compartment opening selectively sealed by at least one lower compartment pivotable door;
• a divider wall between the upper and lower compartments;
• a divider wall opening selectively scaled by an inner pivotable panel;
• the divider wall forming a bottom wall of the upper compartment, with the lower compartment being open-topped;
• the upper compartment having a greater depth dimension than the lower compartment, with back walls of the upper and lower compartments being substantially aligned, such that the upper compartment lies an extended front section with respect to a front wall of the lower compartment to permit a bricked-in installation of the receptacle;
• and
• the upper and lower compartments being separate and selectively reversible in assembled orientation to each other, such that in a first assembled orientation the upper compartment and lower compartment openings face the same direction, and in a second, reversed assembled orientation the upper compartment and lower compartment openings face opposite directions.