Why IPs typically get listed
Most DNSBLs, including smaller ones, list IPs for similar underlying reasons.
Spam complaints from recipients are a common trigger.
A compromised mail server or infected machine sending spam is another.
Hitting a spam trap, an email address set up only to catch spammers, is a frequent cause.
Missing or misconfigured email authentication, like SPF, DKIM, or DMARC, raises your risk too.
Poor list hygiene, meaning you keep emailing stale or invalid addresses, also contributes.
Shared IPs are a particular risk, since another user's bad behavior can get your IP listed too.
We could not confirm operator-specific listing criteria unique to JustSpam.org beyond these standard causes.
How to check if you're listed
The most direct method is a DNS lookup against dnsbl.justspam.org.
This works the same way as any DNSBL query.
You reverse the octets of your IP address and append the zone name.
For example, an IP of 1.2.3.4 becomes 4.3.2.1.dnsbl.justspam.org for the query.
A returned result means you are listed; no answer means you are not.
You can run this check using the dig or nslookup command from a terminal.
Multi-blacklist checker tools that scan dozens of DNSBLs at once may also include this list.
Using one of those saves time if you are troubleshooting a broader deliverability problem.
How to get removed
We were not able to confirm a specific, documented self-service removal form for this operator.
Smaller DNSBL operators often handle delisting manually, through an email address or a contact form.
Start by checking the operator's own site for any listed contact method.
Before requesting removal, fix the root cause first.
That means securing any compromised server, cleaning your sending list, and fixing authentication records.
Document what you changed, since some operators ask for this when you request delisting.
Then submit your removal request through whatever channel the operator provides.
Be specific about the IP, the cause you found, and the fix you applied.
If no self-service option exists, a direct, polite email is usually your best path.
How long it typically takes
We could not confirm a published processing timeframe for JustSpam.org delisting requests.
Smaller, manually run blacklists often take longer than large automated ones.
Build in extra buffer time if you are working against a deadline.
Some lists also use automatic expiry, where listings drop off after a set period without a request.
We could not confirm whether JustSpam.org uses automatic expiry for this zone.
Try our Blacklist Monitoring tool for free today.
Checking manually across many blacklists, including smaller ones like this, takes real time.
An automated monitor can flag a new listing the moment it happens.
That gives you a head start on fixing the problem before it costs you deliverability.
FAQ
How do I check if my IP is on the justspam.org blacklist?
Run a DNS lookup against dnsbl.justspam.org using your IP's reversed octets. A returned result confirms a listing. You can also use a multi-blacklist checker tool that scans many DNSBLs, including smaller ones, at once.
How do I remove my IP from justspam.org?
First fix the underlying cause, like a compromised server or missing email authentication. Then look for a contact method or removal form on the operator's own site. Smaller operators often process delisting requests manually rather than through an automated form.
Why would my IP end up on justspam.org?
The most common causes are spam complaints, a compromised sending server, or hitting a spam trap. Missing SPF, DKIM, or DMARC records also raise your risk. Shared IP addresses can get listed due to another user's activity.
Does a justspam.org listing affect all my outgoing mail?
It only affects delivery to mail servers that actually query this specific list. Smaller DNSBLs tend to have narrower adoption than major blacklist operators. Even so, any blocked delivery is worth investigating and fixing.
