DNS & Email Security Tools
Generate, validate, and test your DNS records for email authentication. All tools are free and produce copy-paste ready records.
SPF Record Generator
Build a valid SPF record for your domain. Add IP addresses, include third-party senders, and configure your SPF policy.
Open ToolDMARC Record Generator
Create a DMARC policy to protect your domain from spoofing. Configure reporting, policy enforcement, and alignment modes.
Open ToolMTA-STS Policy Generator
Generate MTA-STS TXT records and policy files to enforce TLS encryption for inbound email delivery.
Open ToolBIMI Record Generator
Create a BIMI DNS record to display your brand logo in email clients. Boost brand recognition and trust.
Open ToolMore Free Tools
Email Deliverability Tester
Send a test email and get a full deliverability analysis with AI-powered suggestions.
Google & Yahoo Requirements Checker
Check if your domain meets the latest Google and Yahoo sender requirements.
Security Badge Generator
Generate an embeddable security score badge for your website or README.
Why Use DNS Record Generators?
DNS records for email authentication (SPF, DKIM, DMARC, MTA-STS, BIMI) follow strict syntax rules. A single typo can break your email deliverability or leave your domain vulnerable to spoofing attacks.
Our free generators create syntactically correct records that you can copy directly into your DNS provider. Each tool includes validation, best-practice defaults, and links to our in-depth guides for further reading.
After generating your records, use our DNS scanner to verify they are correctly published and configured. For a complete email setup audit, try the Email Deliverability Tester.