On October 2, 2008, Barracuda Networks announced the availability of their Barracuda Reputation Block List (BRBL) for free, general use by email admins. Their reasoning for introducing a new blacklist appears to revolve around their core spam filtering products, which allows them to automatically create and update the blacklist. This email blacklist is another database-oriented approach, where IP addresses that are perceived to have gone “bad” (e.g. originated spam) are automatically added to the database. Read the full BRBL press release here.

We will add the BRBL to our Email Blacklist lookup tool as soon as possible.