On the flip side of this request...
I have posted 2 packages via the post office from USA to Madagascar and they were both opened and items stolen or replaced with items of less value.  (a pair of womens shoes arrived in Madagascar a different style and size!). Headphones or anything electronic disappeared en route.
I would think DHL, UPS or Fed ex are far more reliable than the post office.
My friend in Madagascar sent a package of t shirts to the USA and they all arrived ok.
I have been to Madagascar as a tourist 3 times within the last few years.