Corporations Act 2001
An act done by a secretary is effective even if their appointment, or the continuance of their appointment, is invalid because the company or secretary did not comply with the company's constitution (if any) or any provision of this Act.204E(2) [ Ramifications not addressed]
(a) binds the company in its dealings with other people; or
(b) makes the company liable to another person.
Note: The kinds of acts that this section validates are those that are only legally effective if the person doing them is a secretary (for example, signing and sending out a notice of a meeting of directors if the company's constitution authorises the secretary to do so or signing a document to be lodged with ASIC). Sections 128 - 130 contain rules about the assumptions people are entitled to make when dealing with a company and its officers.