# Mail Security Tools

> Free email authentication toolkit for SPF, DKIM, and DMARC checks

- Website: https://mailsecuritytools.com
- AZN8 listing: https://azn8.com/listing/mail-security-tools
- Pricing: Free toolkit; paid options available · Freemium
- Categories: [Security](https://azn8.com/category/security), [Developer tools](https://azn8.com/category/developer-tools)
- Listed: 2026-11-04
- Updated: 2026-11-04
- JSON: https://azn8.com/api/v1/listings/mail-security-tools

## About

Mail Security Tools helps operators check SPF, DKIM, DMARC and related DNS records so domains are harder to spoof. Clear pass/fail views for MSPs, sysadmins, and founders.

## Features

- SPF/DKIM/DMARC checks
- DNS authentication view
- Practical fix guidance

[Check a domain](https://mailsecuritytools.com)