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open 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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This is because they used to gain a back door entry into mail servers called open relay servers and end up sending mails to all who used that server.
Email Marketing Knowledge Base A Guide to the CAN-SPAM Act by Jennifer Perez / Computers and Internet community
One of the biggest problems that face the senders of newsletters is the temptation to enroll with service providers that turn out to send mails using open relays or is using spammer identities.
Email Newsletters 3 Ways to Improve Delivery by Jennifer Perez / Advertising, marketing, public relations community
t use the mailing methods used by spammers like buying addresses in CDs or off the web, using open relays, spider software, or bots.
Email Marketing 101 How Poor Email Open Rates Can Ruin Your Reputation by Jennifer Perez / Business community
 
 
 
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