How can I set up reverse MX records?

Hey! I had to send an important email but i got aClient host rejected: cannot find your reverse hostname error. As far as I know, I need a PTR record to set the reversed DNS, but as I saw, those records are entered by DigitalOcean itself. What should I do now?


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Solved: I didn’t realize that DO sets PTR records using the Droplet’s name itself. I just renamed my droplet to