Free resource
Estimate the cost of weak email deliverability
When sender authentication breaks, the damage spreads beyond campaigns. This estimator helps small SaaS teams, agencies, and operators quantify what missed inbox placement could be costing across onboarding, billing, and support flows.
Think onboarding emails, password resets, invoices, renewal notices, and sales follow-ups.
Use blended value: recovered invoice, activated trial, saved support ticket, or closed follow-up.
Estimated upside
Recovered inbox deliveries / month
510
Potential value recovered / month
$12,240
Potential value recovered / year
$146,880
This is an estimator, not a promise. It exists to help you quantify how much revenue, activation, or retention can leak when domain authentication is weak.
Product-led SaaS
Activation emails, magic links, onboarding nudges, and lifecycle reminders have to land reliably or trial conversion weakens before product value is obvious.
Agencies and consultants
Proposal follow-up, client reporting, and invoicing often depend on a custom domain with several mail tools layered over time.
Lean operations teams
A single broken SPF include or missing DKIM selector can quietly hurt billing, support, and retention across the company.
When the estimate looks painful, scan the domain
The calculator helps you size the problem. InboxShield shows the actual SPF, DKIM, DMARC, BIMI, and MTA-STS issues behind it, then gives you the exact records needed to fix the setup.