ptr-cloud-providers

Email authentication: SPF, DKIM, DMARC, BIMI and MTA-STS

How to Set PTR Record on DigitalOcean Hetzner Vultr in 2026

Learn how to set PTR record on DigitalOcean, Hetzner, and Vultr to improve email deliverability.

Email authentication: SPF, DKIM, DMARC, BIMI and MTA-STS

How to Set Up PTR Record for Mail Server on AWS EC2

Learn how to set up a PTR record for your mail server on AWS EC2 with clear steps. Improve deliverability and sender reputation with verified reverse DNS.