How do I identify the cause of the blocklisting?

Blocklist information:

• Lookup pages often show listing reason
• May reference specific incidents or dates
• Some provide evidence or samples

Correlation analysis:

• What sending occurred just before listing?
• Any unusual volume or list sources?
• New campaigns or segments?

Common causes:

• Spam trap hits (purchased or old lists)
• Complaint volume spikes
• Compromised accounts sending spam
• Authentication failures
• Malware or phishing content

Investigation:

• Review feedback loop reports
• Check for unusual sending patterns
• Audit recent list additions

The violation citation often indicates the offense. Cross-reference with your activity logs.