Why IPs typically get listed
Most DNSBL listings share a few common causes. Spam complaints, compromised servers, spam traps, missing email authentication, and poor list hygiene all play a role.
Blocklist.de's listings are usually tied to reported abusive connection attempts rather than spam trap hits alone. Compromised servers running brute-force login attempts or automated attack scripts are a frequent trigger.
A server that was hacked, or a misconfigured mail relay used by a spammer, commonly ends up reported. Fixing the root cause matters more than just requesting removal.
How to check if you're listed
Run a DNS lookup against both zones for your IP address. You can also use a blacklist monitoring tool that checks multiple DNSBLs at once, including blocklist.de's zones.
A listing means the operator's database has a report tied to your IP. Confirm the listing before you start any removal steps.
Try our Blacklist Monitoring tool for free today.
How to get removed
Blocklist.de offers a self-service delist page where you enter the listed IP address directly. This is confirmed on the operator's own site, at their delist page.
Before requesting removal, fix whatever caused the report. That usually means patching a compromised server, closing an open relay, or securing exposed login services.
Once you've resolved the issue, submit the IP on the delist page. The site does not appear to require a separate process for each zone, since removal works from the central report database.
If you skip the manual request, the listing also expires automatically after a set period, as long as the underlying problem is fixed. This gives you a fallback if the manual form isn't working for some reason.
How long it typically takes
The operator states that a manual delist request updates within about 60 minutes, at the next list generation cycle. If you don't submit a request, listings tied to a resolved issue expire automatically after roughly 48 hours.
If your IP gets relisted shortly after removal, the underlying issue likely wasn't fully fixed. Check your server logs again before resubmitting.
FAQ
How do I do a blocklist.de blacklist check?
Run a DNS query against all.blocklist.de and bl.blocklist.de for your specific IP address. A blacklist monitoring tool can check both zones automatically alongside other DNSBLs. This saves time versus checking each zone by hand during an active mail delivery problem.
How do I remove my IP from blocklist.de?
Fix the issue that caused the report first, such as a compromised server or exposed login service. Then submit your IP on blocklist.de's delist page for early removal. If you skip this step, the listing expires on its own after about 48 hours, provided the issue is actually resolved.
Does blocklist.de charge a fee to delist an IP?
No fee is mentioned anywhere on the operator's delist page. The process is a simple self-service form where you enter the IP and request removal. This matches how most legitimate DNSBLs handle delisting.
Will removing my IP from bl.blocklist.de also clear all.blocklist.de?
The delist page asks only for the IP address, not a specific zone. This suggests removal works against the central report record rather than each zone separately. If you still see a listing on one zone after delisting, wait for the next update cycle before resubmitting.
Why does my IP keep getting relisted on blocklist.de?
Repeated listings almost always mean the root cause wasn't fully fixed. A compromised server, an open relay, or weak login credentials can trigger new reports quickly. Audit your server for ongoing abuse before requesting removal again.
