- Operator
- Barracuda Networks
- Zone
- b.barracudacentral.org
- Lists
- IP addresses
- Status
- Active
- Severity
- Critical
- Removal
- request form (IP, email, phone, reason): www.barracudacentral.org/rbl/removal-request
- Cost
- free
- Turnaround
- typically processed within 12 hours (operator); third parties cite up to 24h
- Auto-expiry
- 900s DNS TTL
What is Barracuda Reputation Block List (BRBL)?
The Barracuda Reputation Block List (BRBL) is maintained by Barracuda Networks from telemetry across its installed base: spam traps, honeypots and data from Barracuda appliances worldwide. An IP lands on it when that telemetry shows spam-like behavior, virus emission or sustained sending to invalid recipients.
Unlike community lists, Barracuda's primary consumers are its own products, from Email Security Gateway appliances to its cloud filtering. That is exactly why the list matters to B2B senders: it decides whether your mail reaches companies protected by Barracuda, which includes a lot of mid-market and enterprise inboxes.
| 127.0.0.2 | Listed: Poor reputation |
How serious is a Barracuda Reputation Block List (BRBL) listing?
A BRBL listing typically blocks or quarantines your mail at every organization using Barracuda filtering with default settings. Consumer providers like Gmail are unaffected, so the symptom pattern is distinctive: fine to personal addresses, bouncing or vanishing at certain companies. For B2B outreach that can be a large slice of your audience.
Why your IP got listed
Spam-trap and honeypot hits
Barracuda operates its own trap network. Old, purchased or scraped lists feed it, and trap hits carry heavy weight in its reputation model.
High invalid-recipient rates
Repeatedly sending to addresses that do not exist looks like dictionary spamming to Barracuda's telemetry. Poor list hygiene is enough; malice is not required.
Virus or malware emission
A compromised machine or hijacked account sending infected mail from your IP triggers listings quickly.
Complaint patterns at Barracuda-protected domains
Recipients marking your mail as spam inside Barracuda-filtered organizations feeds directly back into the reputation score.
How to remove your IP from Barracuda Reputation Block List (BRBL)
- 1
Confirm the listing
Barracuda provides a lookup at barracudacentral.org. Our blacklist checker also queries the zone directly. Note when the listing appeared and match it against your sending logs.
- 2
Fix the underlying behavior
Scrub invalid and unengaged addresses, stop any campaign built on acquired lists, and sweep for compromised accounts or infected machines. Barracuda re-evaluates continuously, so an unfixed cause guarantees relisting.
- 3
Submit the removal request at barracudacentral.org
The removal-request form asks for your IP, a contact email and phone number, and a short reason. Fill every field honestly and specifically: "compromised account, credentials rotated, outbound queue purged" reads far better than "please delist". Requests with fake contact details are ignored.
- 4
Verify within a day
Most requests are reviewed within 12 to 24 hours. Re-run the lookup afterwards. If you are refused or relisted, the telemetry still shows problems: go back to step 2 before re-filing.
- 01Look it upwww.barracudacentral.org/lookups
- 02Fix the causebefore you ask
- 03Self-service removalwww.barracudacentral.org/rbl/removal-request
- 04Verifytypically processed within 12 hours (operator)
cost: free
How long removal takes
Barracuda states removal requests are typically processed within 12 hours, and in practice most clear within a day. There is no fee and no expedited tier. Relistings after an unfixed cause are common and make subsequent requests slower, so front-load the cleanup.
Frequently asked questions
How long does Barracuda delisting take?
Usually within 12 to 24 hours of submitting the removal request at barracudacentral.org. The review is free. What slows people down is submitting before fixing the cause and getting relisted by fresh telemetry.
Why does Barracuda keep relisting my IP?
Its appliances and traps are still seeing bad signals: invalid recipients, trap hits, complaints or malware. Relisting after removal is diagnostic, not bureaucratic. Audit the mail stream, especially list quality and account compromise, before requesting again.
Does a Barracuda listing affect Gmail or Outlook.com?
Not directly. Consumer providers run their own filtering. The BRBL bites at organizations using Barracuda products, which is why the classic symptom is selective bouncing at certain companies while personal addresses receive your mail normally.
Record checked against the operator's site on ; the whole set was last reviewed on . Cells that say undocumented or not found are gaps in the operator's own material, left as they are.