🚫 Barracuda
What a Barracuda Central RBL listing means and how to get the removal request processed.
IP Blocklist (RBL)
b.barracudacentral.org
ℹ️ About This Blocklist
IP reputation list run by Barracuda Networks. It feeds every Barracuda Email Security Gateway and the Barracuda cloud filters. Listings come from spam traps and customer-side complaint data.
What a Listing Means
Barracuda spam traps or customer appliances reported mail from this IP as spam. The trigger is volume of reports, not a single message.
🔢 DNSBL Return Codes
When listed, the DNSBL returns one of these 127.x.x.x addresses. The specific code indicates the reason for the listing.
| Return IP | Meaning |
|---|---|
| 127.0.0.2 | Listed as a spam source |
✅ How to Request Delisting
Submit the removal form on Barracuda Central. Include the IP, a contact address, and a short note on what caused the listing and what you have changed. Turnaround is typically 12 to 24 hours.
Request Removal from Barracuda ↗📚 Official Documentation
🔍 Check Your IP or Domain Against Barracuda
Run a live blacklist check against all 17 blocklists we monitor, including Barracuda.