IP Blacklist Check
Check if your IP address is listed on spam blacklists or abuse databases. Find out why your emails might be bouncing.
What are IP Blacklists?
IP blacklists (also called DNSBLs or RBLs) are databases of IP addresses associated with spam, malware, or other abusive behavior.
Email servers and websites use these lists to filter incoming traffic and protect users from unwanted or malicious content.
Why is My IP Blacklisted?
- Previous owner sent spam from this IP
- A device on your network is infected with malware
- Your email server is misconfigured
- Shared IP address (hosting, VPN) with bad actors
- Your ISP assigned you a previously flagged IP
How to Get Delisted
Identify the Problem
Find out which blacklist you're on and understand why. Each blacklist has different criteria.
Fix the Issue
Secure your network, clean malware, fix email configuration, or contact your hosting provider.
Request Removal
Submit a delisting request through the blacklist's website. Some lists auto-delist after a period.
Frequently Asked Questions
Does being blacklisted affect my internet speed?
No. Blacklists don't affect your connection speed. They only affect whether email servers and some websites accept connections from your IP.
How long does it take to get delisted?
It varies by blacklist. Some automatically remove IPs after 24-48 hours if no more abuse is detected. Others require a manual request and may take 1-7 days.
Can I check any IP address?
Yes! You can check any IPv4 address. This is useful for checking your mail server's IP, your VPN's IP, or any other IP you're curious about.
What about IPv6 addresses?
Most blacklists only support IPv4 addresses currently. IPv6 blacklisting is less common because IPv6 addresses are abundant and spammers typically use IPv4.