Queensland Consolidated Acts(1) If an Act requires or permits a document to be served by post, service—
(a) may be effected by properly addressing, prepaying and posting the document as a letter; and
(b) is taken to have been effected at the time at which the letter would be delivered in the ordinary course of post, unless the contrary is proved.
(2) If an Act requires or permits a document to be served by a particular postal method, the requirement or permission is taken to be satisfied if the document is posted by that method or, if that method is not available, by the equivalent, or nearest equivalent, method provided for the time being by Australia Post.
(3) Subsections (1) and (2) apply whether the expression 'deliver', 'give', 'notify', 'send' or 'serve' or another expression is used.
(4) Without limiting subsection (2), the requirement or permission mentioned in the subsection is taken to be satisfied, and is taken always to have been satisfied, for the service of a document if the document is, or was, posted by certified mail provided by Australia Post.