Mailhardener
Email security monitoring across DMARC, DNS records, and transport security.
- Website
- mailhardener.com
- Features
- DMARC reporting · DNS monitoring · Hosted MTA-STS
- Pricing
- Free personal plan
Overview
Administrators who want to monitor authentication and email transport security.
Before you choose
The free plan is for personal or evaluation use; confirm commercial licensing and retention needs.
Confirm the domain allowance, message volume, report retention, export options, and support included in your plan.
Pricing
Free for personal or evaluation use on one domain, with up to one month of retention. Commercial subscriptions and MSP plans are available.
Sources
Official product or pricing information
Reviewed 14 Sept 2026. This profile summarises public information; it is not a hands-on product review. Features and plan limits may change.