Free tools for email infrastructure

Standalone utilities for authenticating your sending domain and debugging deliverability. No sign-up, no catch.

Build a valid SPF TXT record for your sending domain.

Generate a DMARC policy record with safe monitoring defaults.

Generate a DKIM keypair and DNS record in your browser.

Build a BIMI record to show your logo in the inbox.

Ship messaging like you ship code.

Start free. No credit card. A built-in email sender works on day one — connect your own providers when you're ready.

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