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Reverse DNS
The process in which an IP address is matched correctly to a domain name, instead of a domain name being matched to an IP address. Reverse DNS is a popular method for catching spammers who use invalid IP addresses. If a spam philtre or programme can't match the IP address to the domain name, it can reject the email.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Software; Online services
- Category: Email; Internet
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