Keller Systems / Deliverability Audit Postmaster & DNS Suite

Executive Deliverability & DNS Audit

Comprehensive DNS and mail security inspection for company domains. Diagnoses DMARC, SPF, MX routing, SSL expiration, and web security headers against current Google Workspace and Yahoo sender enforcement standards.

100% Automated Probing
< 60s Generation Time
TXT / DNS Copy-Paste Records
HTML + PDF Report Deliverables

Inspection Scope

Excerpt from a standard executive scorecard demonstrating diagnostic checks and remediation codes.

Telemetry Vector Standard Required Observed Status Impact
DMARC Record v=DMARC1; p=quarantine | reject Missing / p=none Outbound emails routed to spam by Google & Yahoo
SPF Alignment v=spf1 include:... ~all Valid (Single Record) Authorizes legitimate mail servers
DKIM Key Exposure 2048-bit Selector Key Probed / Unverified Cryptographic signature verification
HSTS Header max-age=31536000; includeSubDomains Not Configured Vulnerable to man-in-the-middle downgrade
SSL/TLS Certificate Valid X.509 Certificate Active (> 60 Days) Transport layer encryption

Remediation Snippet Generation

Every audit delivers exact copy-paste DNS code to resolve identified vulnerabilities immediately.

// Sample Generated DMARC Fix for Root DNS
_dmarc.yourdomain.com IN TXT "v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@yourdomain.com; pct=100;"