# Free email tools.

URL: https://samva.dev/tools

Check how a domain authenticates its email, or build a template to send.

- [Email authentication checker](https://samva.dev/tools/email-auth-checker): Check SPF, DKIM, DMARC, and BIMI for a domain at once.
- [MX lookup](https://samva.dev/tools/mx-lookup): See which mail servers receive email for a domain.
- [SPF checker](https://samva.dev/tools/spf-checker): Read and validate a domain's SPF record.
- [DKIM checker](https://samva.dev/tools/dkim-checker): Look up a DKIM key by selector, or scan for common selectors.
- [DMARC checker](https://samva.dev/tools/dmarc-checker): Read a domain's DMARC policy and what it asks receivers to do.
- [BIMI checker](https://samva.dev/tools/bimi-checker): Check a BIMI record and its logo.
- [AI email editor](https://samva.dev/tools/email-editor): Build an email template with AI, no account needed to start.