All questions
Q & A Security · August 10, 2026

How long does it take to get removed from a blacklist?

It varies widely. Some lists auto-expire listings after 24-48 hours with no further reports. Others like Spamhaus require manual delisting requests and can take 3-7 days. SURBL and URIBL tend to hold domains longer. Always fix the underlying problem first — relisting after removal is common and can result in permanent listing on some databases.

Read the full guide
What Is a Domain or IP Blacklist? How Blocklists Work
Blacklists are real-time databases used by email servers, browsers, and firewalls to block traffic from known bad actors. If your domain or IP is listed — even by mistake — your emails bounce and users see security warnings.
Related questions
Are all blacklists equally important? Can a shared IP get my domain blacklisted? Does having DMARC prevent blacklisting? What is a DNS-based blacklist (DNSBL)?