Chile Travel Guide Handbook. The company in charge of the postal service is Correos de Chile.
Mailing is safe, although slow.
For example, posting a letter from Chile to the United States takes around 2 to 3 weeks. Post offices are open during the week from 9 a.m. to 6 p.m. and on Saturdays from 9 p.m. to 12 p.m, and there is a guaranteed delivery system. You can post packages of up to 30 kilos through the main postal system. These communication systems are very advanced, and their prices reasonable. Calling from the hotel room often has a surcharge depending on the Hotel.