Why IPs typically get listed
A mail server infected with malware is a common cause.
So is a router or IoT device running outdated, exploitable firmware.
An open proxy, one that lets outside traffic relay through your network, is another trigger.
General mail hygiene problems add to the risk too.
These include missing SPF, DKIM, or DMARC authentication records.
High spam complaint rates and stale, poorly maintained recipient lists also contribute.
DroneBL's own detection leans more toward catching active abuse signatures than tracking complaints alone.
How to check if you're listed
Start with a direct DNS lookup against dnsbl.dronebl.org using the standard reversed-IP query format.
Most DNS tools, including dig and nslookup, can run this kind of query.
You can also use a multi-blacklist checker that includes DroneBL in its results.
A returned result typically means the IP is currently listed.
No result generally means the IP is clean on this particular zone.
How to get removed
First, confirm the listing with a direct lookup, not just a bounce message.
Next, identify what actually caused it.
Check mail server logs, router firmware versions, and any device that sends outbound traffic.
Close any open proxy or relay you find.
Patch or replace outdated router or IoT firmware if that's the source.
Remove any malware and change credentials on the affected device.
Once the issue is actually fixed, submit a removal request through DroneBL's own site.
Self-service removal is the typical path for a first-time, resolved listing.
Repeated or unresolved listings may need closer review before delisting happens.
Don't request removal before the underlying problem is actually fixed.
A relisting after a premature request can push you further back in the queue.
Try our Blacklist Monitoring tool for free today.
How long it typically takes
DroneBL does not publish a fixed turnaround time for removal requests.
In practice, straightforward cases where the cause is clearly fixed tend to move faster.
Listings tied to ongoing or unclear abuse can take longer to clear.
Build in some buffer time rather than assuming same-day removal.
FAQ
How do I check if my IP is on the DroneBL blacklist?
Run a DNS lookup against dnsbl.dronebl.org using your IP in reversed order. You can also use a multi-blacklist lookup tool that checks several DNSBLs at once. A returned result means the IP is currently listed on that zone.
How do I remove my IP from DroneBL?
Confirm the listing first, then find and fix the cause, like malware, an open proxy, or outdated router firmware. After the issue is resolved, submit a removal request through DroneBL's own site. Requesting removal before the problem is actually fixed usually just leads to relisting.
What causes a DroneBL listing?
Most listings trace back to a device showing active signs of compromise. That includes open proxies, IRC bots, exploited routers, or worm-infected machines. General mail hygiene issues, like missing authentication records, can also play a role.
Does a DroneBL listing affect email deliverability?
Yes, if the receiving mail server checks dnsbl.dronebl.org as part of its spam filtering. Some servers will reject or quarantine mail from listed IPs. Others may only weigh it as one signal among many, so impact can vary by recipient.
Will my IP get listed again after removal?
It can, if the original cause was not fully fixed before you requested delisting. Reinfection or a repeat misconfiguration can trigger another listing later. Ongoing monitoring of the IP helps catch a repeat issue before it causes mail problems again.
