Willitinbox

Email deliverability tester with 70+ checks, 12-layer validation, and monitoring

Freemium - Freemium — free tests available (Start free, no credit card). Paid plans likely available for monitoring, team workspaces, API/bulk usage (see website for exact tiers).

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About Willitinbox

WillItInbox tests real emails and recipient addresses to answer “will it inbox?” Run a message through a unique test inbox and get 70+ deliverability checks (auth, DNS, headers, content, links, reputation, compliance), plus a 12-layer recipient validator. Monitor sending domains and DMARC posture (SPF/DKIM/DMARC/BIMI/TLS), ingest DMARC reports and external evidence, and automate workflows with API keys, bulk jobs, signed webhooks, delivery logs, schedules, and team workspaces with branded reports and audit events. Start with a free test (no credit card).

Key Features

70+ deliverability checks across authentication, DNS, headers, content, reputation, and compliance
12-layer email validation (syntax, DNS, MX, SMTP, catch-all, disposable, role, typo, provider, risk signals)
Domain & DMARC monitoring (SPF/DKIM/DMARC/BIMI/TLS, DMARC report ingestion, Postmaster/SNDS evidence)
Automation via API, bulk jobs, signed webhooks, delivery logs, report exports and schedules
Team workspaces with invite, audit events, project scoping and branded client exports

Who is this for?

Email marketers, deliverability engineers, developers/integrators, and agencies managing client email deliverability

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Pricing

Freemium

Freemium — free tests available (Start free, no credit card). Paid plans likely available for monitoring, team workspaces, API/bulk usage (see website for exact tiers).