How to monitor blocklist status and remove listings?

Blocklist monitoring prevents surprise deliverability failures. Delisting requires proper process.

Monitoring tools:

• MXToolbox: Free lookup, alerting available
• MultiRBL: Checks many lists simultaneously
• Hetrix Tools: Automated monitoring with alerts
• DNSstuff: Comprehensive DNS and blocklist checks

Key blocklists to monitor:

• Spamhaus SBL/DBL: Most impactful
• Barracuda BRBL: Common for B2B
• Spamcop: User-reported, often temporary
• Invaluement: Targets snowshoe patterns

When listed, before requesting removal:

• Identify what caused the listing
• Stop the problematic behavior
• Document remediation steps taken
• Wait appropriate time (some lists auto-expire)

Delisting process:

• Each blocklist has its own procedure
• Visit the blocklist's website for instructions
• Provide requested information honestly
• Explain remediation steps taken
• Be patient; rushing gets rejected

Preventing re-listing:

• Address root cause completely
• Monitor after delisting for recurrence
• Adjust practices based on what triggered listing