MXTOOLBOX
MXToolbox is a versatile online toolset primarily used for analyzing and troubleshooting DNS and email-related configurations. It offers a wide range of lookups, including MX (Mail Exchange) records, SPF, DKIM, DMARC, A records, PTR records, blacklist checks, and more. MXToolbox can help penetration testers and security professionals gather critical information about a target’s mail servers, DNS setup, and potential misconfigurations. By analyzing this data, testers can identify exposed mail infrastructure, weak or missing authentication records, or open relay vulnerabilities—any of which could be exploited during an engagement. Its ease of use and breadth of functionality make MXToolbox a staple in the reconnaissance phase of many security assessments.
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