Email spam and deliverability test
This mail tester and email spam checker looks at one email. Send it to a temporary address, and the report shows what decides inbox or spam placement: SPF, DKIM, DMARC, BIMI, TLS, IPv6, images, links and the Yahoo and Google sender rules. Free, with no account and no signup.
Send your email to:
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Creating a test address.
The address works while this page is open and accepts one message. The report stays available for 24 hours.
Want to see the result first? Open the sample report.
Built for automation
JSON API
Test from a script or CI job
Create an address, send one email and fetch the report as JSON. Free, with no key and no signup.
POST https://api.echo.email/v1/addresses
Read the API docs →
MCP
Give an AI agent the test
A Model Context Protocol server with three tools: create an address, wait for the email and read the report.
https://mcp.echo.email/mcp
Read the MCP docs →