Barracuda Reputation Block List
b.barracudacentral.org
Operated by Barracuda Networks
Avg removal time
12–24 hours after request
This blacklist severely impacts email deliverability with major ISPs and enterprise mail servers.
About Barracuda Reputation Block List
The Barracuda Reputation Block List (BRBL) is a free DNSBL used by Barracuda Networks email security appliances worldwide. A listing here can block delivery to many enterprise and SMB customers using Barracuda gateways.
Why am I listed?
IPs are listed based on spam trap hits, spam complaints collected through Barracuda's global sensor network, and poor sending practices. Shared IP addresses on ESPs and mail servers with compromised accounts are common listing causes.
How to get delisted
Follow these steps in order to request removal from Barracuda Reputation Block List.
- 1
Investigate your mail server for spam activity, compromised accounts, and open relay configuration.
- 2
Ensure your IP has proper reverse DNS (PTR record).
- 3
Visit barracudacentral.org/lookups to check your listing status.
- 4
Submit a removal request at the same page — provide your IP and a description of corrective actions taken.
- 5
Removal is typically processed within 12 hours. Multiple requests without fixing the root cause may result in delayed processing.
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