What is the role of reverse DNS (PTR) for email?
Reverse DNS (rDNS) maps an IP address back to a domain name. When properly configured, it helps verify that the sender's server is legitimate.
It's the captain's credentials confirming that the ship truly belongs to the company painted on its sails.
Need personalized help?
Get a personalized explanation for your specific email setup. Open an AI assistant with your question pre-loaded — just add your details and send.
Was this answer helpful?
Thanks for your feedback!