MXToolbox (EN)

Definition

MXToolbox is an online tool used to check DNS entries and email configurations. It provides various diagnostic functions to verify the correct setup of SPF, DKIM, and DMARC records. The tool helps IT administrators identify and resolve email deliverability issues.

How it works

flowchart TD   A[IT Administrator] --> B[MXToolbox Web Interface]   B --> C{DNS Query}   C --> D[DNS Server]   C --> E[Mail Server]   D --> F[SPF Record]   D --> G[DKIM Record]   D --> H[DMARC Record]   E --> I[MX Record]   E --> J[Blacklist Check]   F --> K[Analysis]   G --> K   H --> K   I --> K   J --> K   K --> L[Result Report]   L --> A 

In Context

• Typically used together with email server configurations
• Related to: SPF, DKIM, DMARC, DNS Management
• Example use: Checking email deliverability after a server change