We had one last week that ended up clearing on Friday.

I contacted the buyer and politley let them know that we would be delaying postage until the echeque cleared.

Never heard anything until Thursday night when they contacted us asking if we could please mail the item as it was for a birthiday gift.

Since it cleared overnight, we just mailed it the next morning (Friday) anyway.

But in a case like this if we had said no we will not mail it until it clears then you risk bad FB becasue you have a cranky buyer on your hands.

If its a low cost item (which ours mostly are) then we would be inclined to mail it out if asked I think.