An electronic document is considered to have been received
(a) if the document is provided to the information system designated by the addressee, when it enters that information system; or
(b) if the document is posted on or made available through a generally accessible electronic source, when the notice of the availability and location of the electronic document referred to in section 7 is received by the addressee or, if the notice is sent electronically, when the notice enters the information system designated by the addressee.