Canning spam, Question No. 9 |
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| 21 Apr 2005 | SearchSecurity.com |
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9.) What word describes the practice of comparing the routing addresses of incoming e-mail to a list of servers that spammers are suspected of using in an effort to block spam?
Answer from Beware of DNS blacklisting perils:
DNS blacklisting is the practice of comparing the routing addresses of incoming emails to a list of servers that spammers are suspected to use. If an email appears to be from a blacklisted server, it is blocked, usually with a 503-type error for the recipient (assuming the recipient is contactable!). (Read the rest of this tip.)
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