Free Email Blacklist Checker
Check if your domain or IP address is blacklisted by major email security providers and spam databases.
Why Check Email Blacklists?
Email blacklists are databases that track domains and IP addresses with poor sending reputation. Being blacklisted can severely impact your email deliverability, causing emails to be blocked or sent to spam folders. Regular monitoring helps maintain good sender reputation and ensure reliable email delivery.
How Does the Blacklist Checker Work?
This tool checks your IP or domain against major public and
community blacklists, including Spamhaus, SpamCop, SURBL, URIBL, PSBL, SEM, ZapBL, and more.
Results may not cover every blacklist in existence, but we include
the most widely used and trusted sources for free and community access.
For protection against abuse, this tool uses Cloudflare Turnstile (captcha) verification.
Invaluement
Real-time IP and domain reputation monitoring.
How to Improve Your Email Reputation
What to do if you're blacklisted?
- Identify and fix the root cause of the blacklisting
- Request removal from the specific blacklist database
- Implement proper email authentication (SPF, DKIM, DMARC)
- Monitor your sending practices and email content
- Maintain good list hygiene and remove inactive subscribers
Prevention Best Practices
- Use double opt-in for email subscriptions
- Send emails only to engaged, consenting recipients
- Monitor bounce rates and spam complaints regularly
- Implement proper unsubscribe mechanisms
- Use reputable email service providers with good IP reputation
Regular Monitoring is Key
Check your domain and IP reputation regularly, especially before important email campaigns. Early detection of blacklisting issues allows for faster resolution and prevents prolonged delivery problems.