A hosted MCP server that gives Claude, Cursor, and Copilot real email superpowers: verify addresses, validate whole lists, create and query batches — in plain English. One URL, OAuth sign-in, no API keys to paste. Runs on the Truelist engine (1B+ emails validated).

Upload any CSV and get a real-time health report: an overall grade plus the Ok / Risky / Catch-all / Invalid breakdown, checked live against actual mail servers. Free, no signup, no email-gated report. Runs on the Truelist engine — 1B+ emails validated.

Nine free tools covering the DNS your deliverability depends on: SPF, DKIM, and DMARC checkers that grade your config (and generators that build the fix), plus DNS, blacklist, and full deliverability checks. No signup, no metering. From the Truelist team.

Managed cold outbound infrastructure: domains, warmed mailboxes, isolated IPs, and 24/7 blocklist monitoring across 14+ vendors. Enforced sending caps, because "unlimited" is how you end up blocklisted. For teams sending hundreds of emails, not hundreds of thousands

Enter any domain, get an instant reputation report: blacklist status across major lists, SPF and DMARC configuration, mail infrastructure, and a letter grade with concrete fixes. Free, no signup. From the Truelist deliverability team — 1B+ emails validated.

Enter a name and a company domain, get back a verified work email — checked against live mail servers, not guessed from name patterns. Free, no signup, no credits. Built by Truelist, the email validation platform behind 1B+ verified emails.

Unlimited email verification on an affordable subscription. Improve your email reputation, deliverability, and open and click-through rates — all without the hassle of managing credits. Upload a CSV, set up a one-click integration, or connect via API.