Yeah true, I guess I'm just used to my Pact delivery ending up on the mat and it's never clear to me what heuristic the post office use for trying to deliver something vs. it ending up back at the sorting office. I guess I'll give it a punt and, worst case, I have to queue for a bit.
My order from YB always ends back at the post office if no-one is in, which is annoying as every other courier either leaves stuff with neighbours or finds somewhere to stash it.
Any particular reason why you are concerned about it not fitting in a post box? Postie just leaves ours on the door mat...