IP blacklist lookup
Instantly find out whether your IP address or mail server is listed on blacklists (DNSBL/RBL) around the world.
- 132Lists checked
- 10Total lookups
- 2Total visitors
Frequently asked questions
Why does an IP address get blacklisted?
The most common reasons are spam sent from your server, an infected device, a compromised mail account, or sitting inside an IP range with a poor reputation.
How do I get removed from a blacklist?
First fix the cause (stop the spam source, change passwords, correct your SPF/DKIM/DMARC records). Then open a removal request on the relevant blacklist page.
How often are results updated?
Every lookup runs live over DNS; nothing is cached, so you see what the blacklist servers answer at that moment.