BNET Business Dictionary

Business Definition for: Double Opt-in

a type of subscription process for users wanting to sign up to receive specific information or services via a Web site. The double opt-in approach is emerging as the industry standard for subscription management, as it protects the user from being maliciously subscribed to a service by a third party.
The user requests a subscription, via e-mail or Web form. The vendor's system replies with a verification message, requesting an affirmative reply to the message. Only when an affirmative reply is received from the user is the subscription completed.

Additional Resources

Airbus set for radical rethink for long-haul carrier: TOULOUSE, France AFP — Airbus is moving towards the development of a new long-haul carrier, amid criticism of the proposed design of its A350 twin-engined jet, a source close to the European aircraft giant said. "The board of EADS is likely to opt, at the end of May, for...; Tags: Agence France-Presse, Airbus S.A.S., aircraft, carrier, Manufacturing; Research articles 2006-05-10

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