Mailtrap is a email delivery platform to test, send and control email infrastructure in one place. Great for dev, and marketing teams.
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.
Price Comparison
Feature Comparison
Mailtrap and Email Spam Tester both have great feature sets so the right tool for you really depends on your needs.
| Features | Mailtrap | Email Spam Tester |
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