PostMTA
Console Module

Email
Auditor

Pre-flight email validation that catches deliverability issues before they impact your reputation. Comprehensive SPF/DKIM/DMARC checks, content analysis, and best practices scoring — all before you hit send.

Request a Demoarrow_forwardapiAPI Reference
Auditor Features

Validate Before You Send

Catch authentication issues, content problems, and formatting errors before they reach your recipients. Every audit gives you a clear score and actionable recommendations.

verified_user

Authentication Check

Validate SPF, DKIM, and DMARC configuration before sending. Detect misconfigurations, missing records, and alignment issues that could impact deliverability.

  • SPF record validation
  • DKIM signature verification
  • DMARC policy compliance
  • Alignment checks (ADKIM, ASPF)
article

Content Analysis

Analyze email content for potential deliverability issues including spam trigger words, link reputation, image-to-text ratios, and structural problems.

  • Spam trigger detection
  • Link validation and reputation
  • Image-to-text ratio analysis
  • HTML structural validation
score

Best Practices Scoring

Get an overall audit score with detailed recommendations. Score covers authentication, content, formatting, and infrastructure best practices in one comprehensive report.

  • Overall audit score (0-100)
  • Category-level scoring
  • Actionable recommendations
  • Historical score tracking
visibility

Preview Rendering

See exactly how your email will render across major email clients including Gmail, Outlook, Apple Mail, and mobile devices before sending a single message.

  • Multi-client rendering
  • Mobile preview
  • Dark mode simulation
  • Plain text fallback view
Sample Output

Comprehensive Audit Report

Every email audit generates a detailed report with authentication status, content analysis, best practices scoring, and specific recommendations for improvement.

94
Audit Score (0-100)
PASS

Authentication Checks

check
SPFPASSALIGNED

SPF record found and valid. Mechanism includes all authorized senders.

check
DKIMPASSALIGNED

DKIM signature valid. Selector: s1. Key type: ed25519-sha256.

check
DMARCPASSALIGNED

DMARC policy: p=quarantine. Alignment: relaxed. PCT: 100.

Content Analysis
Spam Score:1.2LOW RISK

Issues Found

  • warningNo plain text alternative found — recommended for accessibility

Recommendations

  • lightbulbAdd plain text version of email body
  • lightbulbReduce image-to-text ratio below 60%

Never Send a Bad Email Again

Validate every message before delivery and catch issues that impact inbox placement. Schedule a demo to see the PostMTA Email Auditor in action.

Request a Demoarrow_forwardmailContact Sales