Forward Confirmed Reverse DNS (FCrDNS)
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Forward Confirmed Reverse DNS (FCrDNS)
- April 23, 2021
- Posted by: Nicola Selenu
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A DNS technical configuration that shows a relationship exists between an IP address and a hostname. By having FCrDNS, you prove that your IP address is using a sending domain that you own. This relationship provides a form of authentication that some mailbox providers use in their spam filter methodology.
Synonyms:
Forward Confirmed Reverse DNS, FCrDNS
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Author:Nicola Selenu
Nicola Selenu is a recognized leader in the Email Industry (with 15 years of professional experience as an Email Marketing and Deliverability Consultant) and an active member of the Anti-Abuse community. Some (of the many) brands that proudly served during his career in Email are: Adobe, Nestlé, Expedia, Gucci, Bulgari, Luxottica, UNHCR, Amnesty International, LastMinute, Acer, Groupon.
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Synonyms:
Forward Confirmed Reverse DNS, FCrDNS
Related Articles:
Related Terms:
- Glossary: Domain Name System (DNS)
- Glossary: IP Address
- Glossary: Sending Domain
- Glossary: Authentication
- Glossary: Mailbox Provider (MBP)
- Glossary: Spam
- Glossary: Email Service Provider (ESP)
- Glossary: SpamAssassin
- Glossary: Simple Mail Transfer Protocol (SMTP)
- Glossary: Accelerated Mobile Pages (AMP)
- Glossary: Extended Simple Mail Transfer Protocol (ESMTP)
- Glossary: Deliverability