A product of
West Aspiration Sdn Bhd
In the past, more and more complaints about missing letters and postcards came up in Langkawi.
It was discussed on the Langkawi-Online Expat Forum in February 2008.
In my own experience nothing went missing - but I receive everything registered and I send everything registered.
I even got a few parcels which were half open when they arrived (not packed well from the beginning), but still nothing was missing (and it was nice food stuff from Switzerland). So I personally can definitively not complain. :-)
If you want to be sure, have your incoming and outgoing mail registered.