SPF, DKIM & DMARC Builder
Generate valid DNS TXT records for SPF, DKIM, and DMARC to guarantee domain email deliverability
- Processed client-side in your browser — files never leave your device.
- Free, with no signup, account, or usage limits.
- Works on any modern browser, including mobile.
About this tool
SPF, DKIM & DMARC Builder generates valid DNS TXT records to prevent email spoofing, improve inbox deliverability, and pass domain authentication.
How to use
- Enter your apex domain name.
- Select email provider preset (Google Workspace, Microsoft 365) or custom settings.
- Configure DMARC enforcement policy (none, quarantine, reject) and reporting mailbox.
- Copy generated SPF, DMARC, and DKIM TXT records to your DNS registrar.
FAQ
Why do I need SPF, DKIM, and DMARC?
Major providers like Gmail and Yahoo require these DNS records to prevent emails from going directly to Spam.
Which DMARC policy should I start with?
Start with p=none or p=quarantine while monitoring aggregate reports.
What does SPF, DKIM & DMARC Builder do?
SPF, DKIM & DMARC Builder generates valid DNS TXT records to prevent email spoofing, improve inbox deliverability, and pass domain authentication.
How do I use SPF, DKIM & DMARC Builder?
Open the SPF, DKIM & DMARC Builder tool, then enter your apex domain name.