🚫 Barracuda
Guide to the Barracuda Central RBL: what a listing means and how to submit a removal request.
IP Blocklist (RBL)
b.barracudacentral.org
ℹ️ About This Blocklist
IP reputation list maintained by Barracuda Networks, used by Barracuda Email Security Gateway appliances and cloud services. Listings are based on spam reports and automated analysis.
What a Listing Means
The IP has been identified as a spam source based on data collected by Barracuda spam traps and feedback from Barracuda appliance customers.
🔢 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 a removal request via the Barracuda Central portal. Provide your IP, your email address, and a description of why you believe the listing is incorrect. Processing typically takes 12–24 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.