🔍 Email Blacklist Checker - IP & Domain Reputation Check - The PowerHost

Email Blacklist Checker

Check your domain or IP reputation across 30+ major DNS blacklists instantly

Enter a domain name (e.g., example.com) or IPv4 address (e.g., 192.168.1.1)

What Are Email Blacklists?

Email blacklists (also called DNS-based Blackhole Lists or DNSBLs) are databases of IP addresses and domains that have been identified as sources of spam or malicious email. When an email server receives a message, it often checks the sender's IP address or domain against these blacklists.

If your IP or domain appears on a blacklist, your emails may be rejected, filtered to spam folders, or delayed. This can severely impact your email deliverability and business communications. Major blacklist providers include Spamhaus, Barracuda, SORBS, UCEPROTECT, and many others.

Our blacklist checker queries over 30 major DNSBLs simultaneously to give you a comprehensive view of your email reputation across the internet.

Why Emails Land in Spam

  • Blacklisted IP/Domain: Your sending server is on one or more blacklists
  • Poor Authentication: Missing or incorrect SPF, DKIM, or DMARC records
  • Spam Content: Trigger words, excessive links, or suspicious attachments
  • Low Engagement: Recipients consistently delete or ignore your emails
  • High Bounce Rate: Sending to invalid or inactive email addresses

How to Fix Blacklisting

  • Identify the Issue: Use our checker to find which lists you're on
  • Request Removal: Visit the blacklist's delisting page and submit a request
  • Fix Root Cause: Stop spam-like behavior, secure your server, clean your list
  • Improve Authentication: Set up proper SPF, DKIM, and DMARC records
  • Consider New IP: Sometimes getting a clean IP is faster than delisting

Real-Time Checking

Instant results from 30+ blacklists in seconds

Major DNSBLs

Checks Spamhaus, Barracuda, SORBS, and more

Direct Delisting Links

Quick access to removal request pages

Frequently Asked Questions

How often should I check my IP/domain?

We recommend checking weekly if you send bulk emails, or immediately if you notice deliverability issues. Proactive monitoring helps catch blacklisting early.

How long does delisting take?

It varies by blacklist. Some remove you within hours, others may take 24-48 hours. Certain lists automatically remove IPs after a period of good behavior.

What if I get blacklisted again?

Repeated blacklisting indicates an ongoing issue. Review your email practices, secure your server, clean your mailing lists, and consider professional email hosting with reputation monitoring.

Does being on one blacklist affect all email providers?

Different email providers use different blacklists. Being listed on major ones like Spamhaus will affect deliverability broadly, while smaller lists may have limited impact.