(1) So far as concerns the formalities of making, varying or discharging a contract, a person acting under Australia Post's express or implied authority may make, vary or discharge a contract in the name of, or on behalf of, Australia Post in the same manner as if the contract were made, varied or discharged by a natural person.
(2) The making, varying or discharging of a contract in accordance with subsection (1) is effectual in law and binds Australia Post and other parties to the contract.
(3) A contract or other document executed, or purporting to have been executed, under Australia Post's seal is not invalid merely because a person attesting the affixing of the seal is in any way (whether directly or indirectly) interested in the contract or other document or in the matter to which the contract or other document relates.
(4) This section does not prevent Australia Post from making, varying or discharging a contract under its seal.
(5) This section does not affect the operation of any law that requires some consent or sanction to be obtained, or some procedure to be complied with, in relation to the making, varying or discharging of a contract.