DMARC Enforcement ROI Calculator

Turn DMARC enforcement into a dollars-and-cents conversation. Input your monthly email volume and average revenue per delivered message, then compare baseline inbox placement with authenticated delivery to see monthly revenue lift, projected payback, and ROI over your chosen horizon after implementation costs.

Total marketing or transactional emails you send each month that rely on inbox placement.
Attributed revenue generated whenever an email lands in the inbox (use $0.00 for purely operational mail).
Defaults to 91%. Enter your current inbox placement or deliverability percentage before DMARC enforcement.
Defaults to 97%. Raise or lower this to match expected improvements from DMARC policy enforcement.
Defaults to $6,000 to cover consulting, DNS changes, BIMI/SPF alignment, and monitoring subscriptions.
Defaults to 12 months. Adjust to reflect the payback window you are modeling.

Use real deliverability telemetry and revenue attribution for budgeting. Security outcomes depend on DNS configuration, sender reputation, and mailbox provider policies.

Examples

  • Example 1 — 850,000 emails, $1.85 revenue per delivered email, 91% baseline, 97% post, $6,000 cost, 12-month horizon ⇒ Incremental delivered emails per month: 51,000.00 | Revenue lift per month: $94,350.00 | Revenue lift over 12.00 months: $1,132,200.00 | Project cost: $6,000.00 | Net benefit: $1,126,200.00 | Payback period: 0.06 months
  • Example 2 — 120,000 emails, $0.42 revenue per email, 88% baseline, 94% post, $12,500 cost, 6-month horizon ⇒ Incremental delivered emails per month: 7,200.00 | Revenue lift per month: $3,024.00 | Revenue lift over 6.00 months: $18,144.00 | Project cost: $12,500.00 | Net benefit: $5,644.00 | Payback period: 4.13 months

FAQ

How do I estimate the inbox placement improvement from DMARC?

Review seed-list monitoring, postmaster tools, and ESP benchmark reports. Many senders see 4–8 percentage point improvements once spoofing is blocked and alignment is enforced.

Can I include phishing loss avoidance in the ROI?

Yes. Add the expected fraud reduction to the implementation cost field as a negative number to reflect avoided losses, or increase revenue per email to include brand-protection value.

What if DMARC only affects a subset of my mail streams?

Enter the monthly volume and revenue for the impacted streams only, or run the calculator multiple times for each domain and combine the outputs.

Does the payback period include ongoing monitoring fees?

Include annual monitoring subscriptions in the implementation cost input so the model captures run-rate expenses alongside upfront work.

Additional Information

  • Baseline and post-enforcement inbox placement are expressed as percentages of total sends that actually reach the inbox.
  • Revenue per delivered email should reflect attribution from email analytics or downstream CRM conversions.
  • Implementation cost can include DNS updates, consulting hours, BIMI creative, monitoring tools, and security operations labor.
  • If DMARC enforcement primarily protects transactional mail, set revenue per email to the operational value of delivering those messages on time.

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