Hi Lisaar,
Did you mean they received your application indicated on the cic website or just the courier? Because I submitted using the old pathway like you, actually my 3rd attempt last May 17, 2017 received in Vegreville thru fedex courier, no email or anything. I'll tell you one thing though, my 2nd application attempt was submitted last April 6, 2017 and I saw the application appeared briefly on ECAS (online status) and then disappeared after that I received my whole application for PR and I immediately re-submitted last May 17, 2017. Up to now I haven't received any email and there is no status showing up on ECAS.