Postal services in Belarus are rather reliable. There is a network of post offices, covering entire territory of Belarus. Local mailings are inexpensive and for postcards, letters and small packages (under 0.5 kg) are less than US$ 0.10. International mailings are also cheap.
There is also a network of mailboxes around the country that are both for domestic and international mail.
If you send packages to Belarus via regular (national) mail service and the cost of the package does not exceed ˆ100 and its contents is not intended for commercial purposes, no dues are collected. A 30 per cent import duty is levied on the packages with the contents exceeding ˆ100 and from all packages sent by expedited courier services.