New: Email Detective Chrome Extension
Skip the copy-pasting. Install our free Chrome extension and see which ESP sent any email directly in your Gmail inbox. One badge. 90+ ESPs detected. Plus SPF, DKIM, and DMARC authentication at a glance.
All data stays in your browser. Nothing is sent anywhere.
> Install Email Detective for Chrome
Prefer to do it manually? Paste your email source code below:
If you’re trying to find the ESP used by any company, our Email Detective tool makes the process quick and straightforward.
Simply paste in your emails source code, and we’ll analyze it to identify which email service provider is behind the message. This is especially useful for marketers researching competitors, agencies auditing client setups, or businesses considering a switch to a new platform.
Instead of guessing whether a brand uses ActiveCampaign, Brevo, Kit, Klaviyo or Mailchimp, or another provider, you can base your decisions on real data and see exactly which ESP is powering their email campaigns.
