Listed alphabetically. A tool is ranked by its reviews once it has 3.
Email security tools with a free trial Tool Reviews Lowest paid plan Free plan Free trial Public API Runs on Main features dmarcian Gives internet domain owners control over their email domains with DMARC. Reviews None yet Write one for dmarcian Lowest paid plan $24 per month, billed monthly Basic, as of November 14, 2026 Free plan YesFree trial 30 daysPublic API YesRuns on Not confirmed Main features Alert Central Detail Viewer Source Viewer EasyDMARC An all-in-one DMARC platform that helps secure communications and stay compliant. Reviews None yet Write one for EasyDMARC Lowest paid plan $35.99 per month, billed annually DMARC Plus, as of November 14, 2026 Free plan Not confirmed Free trial YesPublic API YesIronscales AI email security that stops phishing and business email compromise. Reviews None yet Write one for Ironscales Lowest paid plan Not confirmed Free plan Not confirmed Free trial YesPublic API YesRuns on Microsoft 365, Google Workspace, Microsoft Teams Material Security Phishing protection, account takeover prevention, and email DLP for Google Workspace and Microsoft 365. Reviews None yet Write one for Material Security Lowest paid plan $4 per user per month, billed annually, plus a fee based on Shared Drive size Essentials, as of November 14, 2026 Free plan Not confirmed Free trial YesPublic API YesPowerDMARC A complete DMARC service for email authentication, deliverability, reputation, and DNS compliance. Reviews None yet Write one for PowerDMARC Lowest paid plan $8 per month, from $8 for 50,000 emails per month, up to $250 Basic, as of November 14, 2026 Free plan YesFree trial 15 daysPublic API Red Sift Red Sift helps security and IT teams embrace protocols like DMARC, SPF, DKIM and TLS. Reviews None yet Write one for Red Sift Lowest paid plan Not confirmed Free plan Not confirmed Free trial 14 daysPublic API Not confirmed Runs on Not confirmed Main features
From each tool's own website. “Not confirmed” means we couldn't confirm it there, not that the tool doesn't have it. Each tool's page says when its facts were checked.
How this list is made A tool is listed here only when we've confirmed on its own website that it has a free trial. Tools we couldn't confirm it for are left out, even if they may have it. Vendors can't pay for a place on this list. Add a tool we missed