Express delivery service in Moscow

Express Mail is a money-back guaranteed overnight to 2-day service offering tracking, proof of delivery, and insurance up to $100. Items shipped using this service can be delivered within the 48 contiguous United States and the Washington, D.C. within 1 to 2 business days.
One advantage of Express Mail is that USPS will deliver 365 days a year, including Saturdays, Sundays, and federal holidays at no additional charge to some locations. USPS competitors often charge for delivering on anything other than a business day.

Unlike Priority Mail and First Class Mail, USPS provides real-time tracking information online and by phone for Express Mail shipments.

Global Express Guaranteed(GXG) service is an international expedited delivery service provided through an alliance with FedEx Corporation. It provides reliable, high–speed, guaranteed, and time–definite service from selected Post Office facilities in the United States to a large number of international destinations. (See Countries and Cities Served Section of Publication 141, Global Express Guaranteed Service Guide, for destination service commitments.) Global Express Guaranteed delivery service is guaranteed to meet the specified service standards or the postage paid may be refunded. For almost all network destinations, liability insurance is provided for lost or damaged shipments.

Other private express carriers guarantee overnight or 2-day delivery by as early as 8:30 or 10:30 AM. Express Mail also conveys other benefits under specific circumstances; U.S. patent applications and related documents transmitted to the United States Patent and Trademark Office via USPS Express Mail carry the postmark date as the date of patent priority, so long as each document is mailed along with a signed certificate of mailing bearing the Express Mail tracking number of the mailing label.

From  – en.wikipedia.org