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OpsTrellis
DNS record generator · Free tool

Every DNS record your domain needs to send mail.

Pick your mail provider and get SPF, DMARC, and MX records ready to paste, with provider-specific steps to turn on DKIM.

  • Pre-formatted SPF, DMARC, and MX records
  • Tailored DKIM instructions for Google, Microsoft, Zoho & Mailgun
  • 1-click copy formatted for Cloudflare, GoDaddy, Namecheap & cPanel

Configured to adhere to 2026 Google & Yahoo bulk-sender inbox authentication guidelines.

Generate DNS records

Select your provider and customize your domain parameters.

Daily Free Usage:0 of 2 used2 checks remaining

The domain your mail is sent from.

Receives DMARC XML forensic reports. Starts with monitor policy (p=none).

SPF ending