Definition

On-Demand Mail Relay (ODMR) or Authenticated TURN (ATRN)

Part of the Internet applications glossary:

On-Demand Mail Relay (ODMR), also known as Authenticated TURN (ATRN), is an e-mail service that allows a user to connect to an Internet service provider ( ISP ), authenticate, and request e-mail using a dynamic IP address from any Internet connection. Simply put, ODMR is Simple Mail Transfer Protocol ( SMTP ) using dynamic IP addresses instead of static IP addresses. Once the user requests e-mail, the roles of client and server reverse, and normal SMTP operations occur.

ODMR can only be used with Internet service providers that support ODMR.

This was last updated in January 2011
Posted by: Margaret Rouse

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