.. a postal service based on courier system either on horse back or on foot.
This system was also followed by the British East India Company during early ...
www.stampsofindia.com/readroom/602.htm

.. largest postal network, the Indian postal service has come a long way. ...
the horse courier service and maintained a regular courier postal service. ...
www.pitara.com/discover/5wh/75.htm

CHINA'S POSTAL SERVICE: A BRIEF HISTORY
The horse courier service, even during those early years, was well organized ...
distribution of the postal zones and abolished the old horse courier posts. ...
chinapost.gov.cn/upuxx/cywl/eng/2.htm

FIRST IRANIANS WHO INTRODUCED THE FIRST SYSTEM OF POSTAL SERVICES ...
Reliable evidences indicate that the first regular postal system in the world
... Herodotus also praised the swift courier posts of ancient Persian Empire. ...
www.iranian.ws/iran_news/publish/article_7579.shtml

Thurn und Taxis.com Telecom Pioneers by Phonebook of the World.com
had set up a horse based message transport system ... The last Thurn and Taxis
postal system was purchased and nationalised ...
www.phonebookoftheworld.com/thurnandtaxis.htm

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Note added at 7 mins (2005-06-22 07:57:51 GMT)
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or: postal service

albo tak
Brigadier General Stephen Watts Kearney established a fortnightly horseback mail service route through Rose Canyon in 1847. By 1851, mail was delivered by ship to San Diego and loaded on mules for semi-monthly delivery to Los Angeles.
http://www.rosecanyon.org/History.htm