open relay

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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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SMTP relay

spam relay

Relying on the performances of several Daily News All-Area swimmers, Canyons won all five women's open relays.

SWIMMING NOTEBOOK: CANYONS AQUATIC WEARS SCSAA CROWN by Daily News (Los Angeles, CA)

The alarm lights the red detect lamp on the front panel, it also closes a normally open relay contact closure to signal the detection event.

Processor is designed to detect quality defects after splicing by Rubber World

A large portion of the spam sent daily is sent using an open relay to help spammers hide their identities.

Want to stop spam? Multiple techniques in unison is the answer by Korsak, John / Computer Technology Review

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