dmarcian vs Mailhardener (2026): which should you pick?

Pick dmarcian if

• Fits if you need DMARC on two business domains at $19.99 a month billed yearly
• Works for a personal, non-business domain, which the free plan covers

Look elsewhere if

• Pricey if you outgrow 2 domains or 1 user, as Plus jumps to $199 a month billed yearly
• Skip it if you want an API, single sign-on or Domain Discovery, which wait for Enterprise at $499 a month
• Not for you if you need list cleaning, warm-up or placement tests
• Watch out: the free plan is for non-business domains only, and an audit that finds a business domain ends the account
• Watch out: prices exclude tax, no integrations are on record, and Basic keeps only 3 months of history

Pick Mailhardener if

• Fits if you run up to 10 domains and want reports and hosted MTA-STS
• Works for a personal domain you only want to look at

Look elsewhere if

• Skip it if your domain is a company's, as the free plan is for personal or evaluation use
• Tight if you want more than 3 months of history, as 12 months needs Large at EUR 99 a month
• Watch out: prices are in euros and no dollar price was readable
• Watch out: the page does not make clear which tiers have API access and SSO

dmarcian

• The free Personal plan is for non-business domains only; business domains found in an audit make the account expire.
• API access, single sign-on and Domain Discovery are Enterprise only.
• Basic covers just 2 active domains; more domains or volume need a higher tier or a custom quote.
• Prices exclude tax, and the tool does not verify lists, warm up inboxes or test placement.

Mailhardener

• Prices are shown in euros; the page has a currency selector, but a dollar price was not readable from the server.
• The free plan is for personal or evaluation use only, not commercial domains.
• The comparison table lists API access, SSO and periodic reports, but which tiers include them could not be read from the page text.

dmarcian

DMARC report processing

Turns aggregate reports into a view of each sending source, enriched with what dmarcian knows about that service, with automatic subdomain detection.

SPF, DKIM and BIMI tools

SPF Surveyor, a DKIM inspector and validator, and a BIMI inspector and builder, plus TLS reporting.

Alerts and forensic reports

Alert Central and forensic (RUF) report processing with a viewer, on paid plans.

Domain Discovery

On Enterprise, finds domains your organization has registered and adds them to the catalogue.

Deployment services and support

Deployment services and dedicated support are offered by a company founded by one of the main authors of the DMARC specification.

Mailhardener

DMARC reporting

Aggregate (rua) and failure (ruf) reports show every sender using the domain, with a plain-English breakdown. The vendor says its algorithm separates forwarding services from malicious senders.

SMTP TLS reporting

TLS failures reported by sending servers are aggregated and analyzed, with warnings by email.

Hosted MTA-STS and BIMI assets

Mailhardener serves the MTA-STS policy and BIMI assets so a domain can adopt them without running a web server.

DNS change monitoring

Email-related DNS records are monitored, and a notification explains what a change does to protection.

Domain inspector

Shows how SPF, DKIM, DMARC and related records are configured and flags common mistakes.

Multi-user access and auditors

Paid tiers support role- and domain-based access control, several organizations per login and read-only auditor access.

dmarcian

• Personal$0

  Non-business use only, audited automatically: 2 active domains, 1,250 DMARC-capable messages a month and 1 month of history.

• Basic$19.99

  per month for 100,000 messages, billed yearly ($24 monthly)

  Up to 2 active domains, 1 user, 3 months of history, alerts and forensic report processing.

• Plus$199

  per month for 1M messages, billed yearly ($240 monthly)

  Up to 8 active domains, 3 users, a year of history, IP safelisting and user access controls.

• Enterprise$499

  per month for 5M messages, billed yearly ($600 monthly)

  Up to 15 active domains, unlimited users and history, Domain Discovery, API access and single sign-on.

• CustomCustom

  Tailored pricing for more domains or volume, service providers and high-volume senders.

Mailhardener

• Free€0

  1 domain, 1 user, fair-use report volume and 1 month of retention, for personal or evaluation use.

• Standard€19

  per month for up to 10 domains, billed monthly (€199 per year)

  3 months of retention, unlimited users, hosted MTA-STS, BIMI hosting, DNS monitoring and technical support.

• Large€99

  per month for up to 100 domains, billed monthly (€999 per year)

  12 months of retention, limited onboarding assistance and payment by invoice, plus the Standard features.

• EnterpriseCustom

  No domain limit, custom contract length, assisted onboarding, a private instance option and compliance agreements such as a HIPAA BAA.

dmarcian

• Annual discount

  Lower price with yearly billing

  Basic is $19.99 a month billed yearly ($239.88) against $24 billed monthly, which dmarcian shows as a $48.12 saving.

• Nonprofit

  Special pricing for nonprofits, government and education

  dmarcian's pricing FAQ says it extends special pricing to nonprofits, government and education, and offers multi-year discounts on request.

Mailhardener

• Annual discount

  Save with annual billing

  Standard is €199 a year (saves €29) and Large is €999 a year (saves €189), against the monthly prices.