mailX

This tool provides a comprehensive suite of email deliverability and DNS lookup utilities. It helps you understand exactly why your newsletters might be landing in the spam folder by analyzing your domain infrastructure in real time.

You can instantly verify your SPF, DKIM, and DMARC records to prevent spoofing and improve sender reputation. The platform also checks for BIMI configuration, helping your brand stand out in the inbox with a verified logo.

The tool scans your domain and IP against major RBL and DNSBL blacklists. If your infrastructure is flagged, you receive actionable steps to resolve the issue and restore your sender trust with mailbox providers.

Instead of digging through technical jargon, you get plain-English explanations for every error found. This allows newsletter operators to fix complex technical issues without needing deep engineering expertise.

Use the combined audit feature to run a full check of your MX records, SMTP servers, and authentication protocols in one click. This provides a single, unified report on your domain's health and connectivity.

Marketing teams can use these insights to protect their sender reputation during high-volume campaigns. Agencies can manage multiple client domains, performing fast diagnostics to ensure high deliverability across various email platforms.