Tools and Solutions >> Cybersecurity >> Email Security
Email security tools like MXToolbox and MX-Tester analyze and monitor email infrastructure to ensure it is properly configured and not vulnerable to abuse. They check DNS records such as SPF, DKIM, and DMARC, verify mail server response, and detect blacklisting or misconfigurations. These tools help prevent email spoofing, improve deliverability, and secure communication channels against phishing and spam.
dmarcchecker.app - Check DMARC, DKIM, and SPF Settings
MXToolbox – DNS lookup tool for SPF, DKIM, and DMARC validation.
Google Admin Toolbox (CheckMX) – Diagnostic tool for checking SPF, DKIM, DMARC, and mail server configuration.
Mail-Tester – End-to-end email deliverability test including spam score, SPF, DKIM, and DMARC.
DKIMCore Key Check – Verifies the DKIM public key for your domain.
Kitterman SPF Validator – Syntax validator for SPF records, with detailed error output.
SSLTools Email Security Test – Technical test of mail server settings including TLS, SPF, DKIM, and DMARC.
Mailhardener – Shows DNS-based email security status for SPF, DKIM, DMARC, MTA-STS, and more.