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Mailhardener Review 2026: Pricing, Plans and Email Authentication

Mailhardener manages domain authentication and transport standards; Standard is €19 monthly for up to ten domains with three months of retention.

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Facts at a glance

Starting price
Mailhardener lists Standard for small businesses at €19 monthly or €199 yearly for one to ten domains. · as of October 2026
Free plan
Mailhardener offers free use for personal or evaluation use, limited to one domain and one month of data retention.
Free trial
Not documented
Last verified
2026-10-23

Key capabilities

Best DMARC Software 2026

DMARC, SPF, and DKIM managementMailhardener documents SPF and DKIM support, DMARC reporting, MTA-STS policy hosting, BIMI, DNS monitoring, and DNSSEC chain validation.
Mail platform integrationsNot documented
Deployment and hosting modelNot documented
Published starting priceMailhardener lists Standard for small businesses at €19 monthly or €199 yearly for one to ten domains.
Data residency and retentionMailhardener lists one month of data retention for the free version, three months for Standard, and one year for Large.

Appears in these comparisons

Consider instead

  • DMARC Report — Shares 1 shortlists; ranked above Mailhardener on Best DMARC Software 2026
  • Suped — Shares 1 shortlists; ranked above Mailhardener on Best DMARC Software 2026
  • URIports — Shares 1 shortlists; ranked above Mailhardener on Best DMARC Software 2026

Change log

  • 23 October 2026 — Checked 14 facts including Starting price, Free plan, Free trial, Price published

Mailhardener manages domain authentication and transport standards; Standard is €19 monthly for up to ten domains with three months of retention.

The documented product scope is stated above; compare it with the mail workflow this team needs to protect.

Vendor sources: Features - Mailhardener; Pricing - Mailhardener.

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