Spam Analysis with SpamAssassin
Master email deliverability with MailLinter's integrated SpamAssassin analysis. Understand spam scores, identify issues, and optimize your emails for maximum inbox delivery rates.
Understanding Spam Scores
Score Thresholds
Score Examples
Clean Email
This email passes all major spam tests and should deliver successfully.
Triggered Rules:
DKIM_VALIDValid DKIM signature
SPF_PASSSPF record validates
HTML_MESSAGEContains HTML content
SpamAssassin Rule Categories
Bayes
Statistical analysis based on content patterns and machine learning
Analyzes email content against a database of known spam and ham emails to calculate probability scores.
BAYES_50BAYES_95BAYES_99Authentication
Email authentication protocols (DKIM, SPF, DMARC)
Validates that emails are legitimately sent from the claimed domain using cryptographic signatures and DNS records.
DKIM_VALIDSPF_PASSDMARC_PASSDNS/RBL
Domain and IP reputation checks against blacklists
Checks sender IPs and domains against real-time blacklists maintained by anti-spam organizations.
URIBL_BLOCKEDSURBL_MULTIDNS_FROM_RFC_DSNContent
Analysis of email body content and structure
Examines email content for suspicious patterns, encoding issues, and structural problems.
HTML_MESSAGESUBJECT_NEEDS_ENCODINGMIME_HTML_ONLYHeaders
Email header validation and analysis
Validates email headers for completeness, formatting, and compliance with email standards.
FROM_MISSINGINVALID_DATEMISSING_MIDNetwork
Network-based tests and relay validation
Analyzes the network path the email took and validates sending infrastructure.
RCVD_IN_DNSWLRELAY_IS_GMAILRDNS_NONEImproving Your Spam Score
Authentication
- Set up DKIM signing for your domain
- Configure SPF records in DNS
- Implement DMARC policy
- Use consistent From addresses
Content
- Balance HTML with plain text version
- Avoid spam trigger words in subject
- Use proper HTML structure
- Include alt text for images
Infrastructure
- Use reputable email service providers
- Maintain good sender reputation
- Monitor IP/domain blacklists
- Implement proper bounce handling
Advanced Analysis Features
Real-time Processing
- Automatic analysis on email arrival
- Sub-100ms processing time
- Detailed rule breakdown
Performance Metrics
- Rule execution timing
- Network test results
- Error handling and fallbacks
What's Next?
Pro Tips for Email Deliverability
Authentication Setup
- • Always implement DKIM, SPF, and DMARC
- • Use consistent From addresses
- • Monitor authentication failures
Content Best Practices
- • Include both HTML and plain text versions
- • Avoid excessive capitalization and exclamation marks
- • Test with real content, not placeholders