Cambodian Postal Service: We suggest you use the Cambodian postal service only for noncritical items—like postcards. Actually, there is no real Cambodian Postal Service as mail in Cambodia is handled by EMS—Express Mail Service. EMS is an International Postal Express Mail Service offered by Postal-Operators of the Universal Postal Union (UPU). The UPU, a specialized agency of the United Nations, promotes the harmonization of postal services worldwide. Despite this, it is infamous for being laid, delayed, and mishanded.
Also, there is no real mail delivery service except for big, easily identified businesses. If you are coming to work, your best bet is to receive mail at your workplace with the understanding that only non-critical items should be sent through the mail service (since EMS will handle local mail delivery for items sent through United States Postal Service or Canadian Royal Mail, for example). You can also go to the local post office and request that they hold your mail for you. This is the best option if you cannot have it delivered to a business.