Why IPs typically get listed
Most listings on any DNSBL come from a small set of common causes.
Spam complaints from recipients are one of the most frequent triggers.
A compromised mail server or infected machine sending spam is another common cause.
Hitting a spam trap, an email address set up only to catch spammers, happens often too.
Missing or broken authentication, like SPF, DKIM, or DMARC records, can also raise suspicion.
Foobar.hu's pofon.foobar.hu zone adds a specific detail worth knowing.
Some entries there get added automatically, based on mail behavior patterns seen across servers.
Other entries get added manually, after a human reviewer confirms a persistent spam source.
Manually added entries can stay listed much longer than automated ones.
They don't rely on a routine expiration timer the way automated entries do.
On the URI list, listings target the linked domain, not the sender's IP.
The operator has described this zone's policies as still being worked out.
Entries on that list are added manually rather than by an automated process.
Phishing pages hosted on free web hosting services are a common reason a domain ends up here.
How to check if you're listed
Run a DNS lookup against the specific zone using your reversed IP address.
For example, query your reversed IP followed by pofon.foobar.hu using dig or nslookup.
A returned address starting with 127.0.0 means you're listed on that zone.
No answer back from the lookup means you're clear on that zone.
Repeat the same pattern against uribl.pofon.foobar.hu, using the domain instead of an IP.
Third-party multi-list checkers can query several DNSBLs, including Foobar.hu's zones, in one pass.
Checking all your outbound IPs regularly catches a listing before it causes major delivery problems.
How to get removed
The process differs slightly by zone, so don't assume one request covers all three.
For pofon.foobar.hu, start at the operator's own site to check your listing detail.
Automated entries there are generally expected to expire once the triggering behavior stops.
Manually added entries typically need direct contact with the operator to request review.
Fix the actual cause first, before requesting any removal.
That could mean securing a compromised server or correcting your authentication records.
For uribl.pofon.foobar.hu, the fix usually starts with taking down or securing the flagged page.
Since this zone's entries are manual, removal after that fix likely also needs direct contact.
For rbl.foo.hu, no separate documented process was confirmed during research.
Follow the same general pattern: check the listing, fix the cause, then contact the operator.
Keep records of what you fixed along the way.
A clear explanation of the corrected issue speeds up any manual review.
How long it typically takes
Foobar.hu hasn't published a fixed turnaround time for any of its three zones.
Automated entries on pofon.foobar.hu appear designed to expire once bad behavior stops.
The exact expiration window for those entries isn't published anywhere.
Manual entries, on either the IP list or the URI list, depend on a reviewer's response time.
That can take anywhere from a day to considerably longer.
No service-level timeline is stated publicly for manual review.
Plan for the possibility of a multi-day wait, especially for manually reviewed listings.
Try our Blacklist Monitoring tool for free today.
FAQ
How do I run a foobar.hu blacklist check?
Query the specific zone with your reversed IP address using a DNS lookup tool like dig or nslookup. For the URI list, query using the flagged domain instead of an IP. A returned 127.0.0.x address confirms a listing. Multi-list lookup tools can check all three Foobar.hu zones at once.
How do I remove my IP from foobar.hu?
First identify which of the three zones has you listed, since the process isn't identical across all of them. Fix the underlying cause, such as a compromised server or missing email authentication. Then check the operator's own site for pofon.foobar.hu, since some entries expire automatically. For manually added entries, contact the operator directly to request review.
Is Foobar.hu a well-known blacklist?
It's a smaller, regionally focused DNSBL rather than a major global list like Spamhaus. It still gets queried by some mail servers, particularly in Hungary and nearby areas. A listing there can still cause bounces or filtering for mail sent to affected recipients. It's worth checking even though it has less name recognition than larger operators.
What's the difference between pofon.foobar.hu and uribl.pofon.foobar.hu?
Pofon.foobar.hu lists sending IP addresses tied to spam or abuse behavior. Uribl.pofon.foobar.hu instead lists domains found in the body of spam or phishing messages. A clean sending IP can still trigger a filter if your email links to a listed domain. Checking both separately matters if your mail is being blocked for an unclear reason.
Can I get listed on rbl.foo.hu without knowing why?
Yes, this is common across most DNSBLs. Automated systems often add entries based on observed mail behavior, without a manual notification to the sender. That's why running a regular blacklist check across all your sending IPs matters. Catching a listing early makes the underlying cause much easier to trace and fix.
