WillItInbox
Test emails before they hit spam
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WillItInbox - Test emails before they hit spam

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WillItInbox helps teams test important emails before they launch. Generate a unique test inbox, send a real email from your app or ESP, and get a 0-100 deliverability report across SPF, DKIM, DMARC, DNS, headers, content, links, TLS, and infrastructure. It also includes email validation, bulk CSV validation, domain monitoring, DMARC visibility, API keys, webhooks, and lightweight SDKs.

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Hey Product Hunt, I built WillItInbox because too many teams only find out their important emails are broken after users complain. WillItInbox lets you generate a test inbox, send a real email from your app or ESP, and get a practical deliverability report across SPF, DKIM, DMARC, DNS, headers, content, links, TLS, and infrastructure. This relaunch adds more than the original tester: email validation, bulk CSV validation, domain monitoring, DMARC visibility, API keys, webhooks, and workflow automation. Would love feedback from SaaS founders, developers, agencies, and newsletter operators who rely on transactional or outbound email.