Reverse DNS (rDNS)
Reverse DNS (rDNS)
- April 20, 2021
- Posted by: Nicola Selenu
It is the process in which an IP address is matched correctly to a domain name instead of its reverse. It is a popular method of catching spammers. Spammers use invalid IP addresses which are detected easily by a reverse DNS. Emails may get rejected if the program or spam filter fails to match the IP address to the domain name.
Author:Nicola Selenu
Email Service Providers Handbook
The most comprehensive “Handbook of Email Service Providers“!
SPAMASSASSIN RULES
All SpamAssassin rules in one place, EXPLAINED!
SMTP COMMANDS
& REPLY CODES
All SMTP/ESMTP commands and reply codes in one place, EXPLAINED!
Free DNS Tool
Check the DNS records of your domain with our free DNS tool.
Deliverability Glossary
The most comprehensive Email Deliverability and Marketing Glossary!
Reverse DNS (rDNS)
It is the process in which an IP address is matched correctly to a domain name instead of its reverse. It is a popular method of catching spammers. Spammers use invalid IP addresses which are detected easily by a reverse DNS. Emails may get rejected if the program or spam filter fails to match the IP address to the domain name.
« Back to Glossary IndexAuthor:Nicola Selenu
Email Service Providers Handbook
The most comprehensive “Handbook of Email Service Providers“!
SPAMASSASSIN RULES
All SpamAssassin rules in one place, EXPLAINED!
SMTP COMMANDS
& REPLY CODES
All SMTP/ESMTP commands and reply codes in one place, EXPLAINED!
Free DNS Tool
Check the DNS records of your domain with our free DNS tool.
Deliverability Glossary
The most comprehensive Email Deliverability and Marketing Glossary!
« Back to Glossary Index