Mailtester MCP Servers
2 servers published under mailtester. 2 answered our last handshake, 0 did not, and between them they expose 11 tools.
2 servers 2 answering 0 not responding
MailTester Email Verification
by mailtester
Verify emails (valid/invalid/risky/unknown): MX, SMTP, catch-all, disposable. Free agent key.
MailTester Ninja
by mailtester
Verify email addresses live against their mail server and find work emails. Nothing stored.