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open relay
(redirected from SMTP relay)

   Also found in: Wikipedia 0.01 sec.
open relay
Typically refers to an e-mail server (SMTP server) that is configured to deliver any incoming mail to another mail server. In the past, open relays (open relay servers) were common, but today, most e-mail servers block all e-mail that does not originate with the customers of the service or employees of the company. The term may also apply to a proxy server that can be used by the general public. See spam relay and anonymous remailer.


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The encryption, then, actually occurs between the individual SMTP relays rather than between the individual sender and recipient.
The anti-virus solution is intended for use with Infonet's SMTP Relay service and IP Mail hosted mailbox service.
WorldCast as a bulk emailer acts like a self-sufficient SMTP relay, sending your customized message straight out to the recipient's mail server (without using your ISP's SMTP server, although it still offers the possibility to use any SMTP server).
 
 
 
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