Send your issue to a test address and see where it landed at twelve mailbox providers, inbox or spam. The same report runs 42 technical checks on the copy that arrived: SPF, DKIM and DMARC alignment, blocklists, two spam engines, the Gmail and Yahoo bulk sender rules, and the content itself. Every problem comes with a plain-language fix. Free, no signup, with an API and an MCP server if you want to test from a script or an AI agent.
Features
- ⚒️ API
Integrate with the platform's API
- 🤖 Automation
Automate actions based on behaviours
- 🛡️ SPF Validation
Validate SPF records for authorised email senders
- 🔏 DKIM Validation
Validate DKIM records and email signatures
- 📊 DMARC Reporting
View reports on email authentication and domain usage
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Stats
See the number of newsletters that use Email Spam Tester on InboxReads and its interest over time.
