SenderBase.org is the world's largest email and Web traffic monitoring network. First introduced in February 2003 IronPort's SenderBase Network collects nowadays data on more than 25 percent of the world's email traffic and provides an unprecedented real-time view into security threats from around the world. SenderBase can be used like a "credit reporting service" for email, providing comprehensive data that ISPs and companies can use to differentiate legitimate senders from spammers and other attackers and giving email administrators visibility into who is sending them email.
SenderScore.org provides you with access to detailed reputation reports and other free tools to improve the overall email experience for everyone, and promote transparency and trust between legitimate email senders and Internet Service Providers.
BarracudaCentral.org, is devoted to sharing information with Barracuda Networks customers and the Internet security community. Here you will find a wide range of statistics, threat information, and a number of useful services to help manage and secure your network.