Jon's Network

Virus Bulleting evaluated 15 anti-spam vendors this month. I would love to post the pretty picture where they plot the vendors on a scale of spam catch rate vs false positive rate but I don’t think they would approve. You can sign up to get a copy here. The formula for the final scores was [...]

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I sent a network admin an email last week with some links in the body. One of the links was to Sunbelt Software. The admin never got it because their Barracuda Spam Firewall blocked it. Why? Because it had a link to Sunbelt’s website in the body: I have heard of anti-spam solutions blocking references [...]

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Robert Alan Soloway was arrested Wednesday charged with mail fraud, wire fraud, e-mail fraud, aggravated identity theft and money laundering. According to Microsoft, he is one of the worlds most prolific spammers. Federal authorities actually said that we could notice a decrease in spam according to Yahoo News, but I find that hard to believe. [...]

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Can you guess the vendor? I watched a web demo yesterday. Here are my notes from the strategic portion that demonstrate well how list based solutions are no match for today’s threats. Which vendor gave the presentation? Problems no outbound inspection no anti-malware protection from live web pages (web 2.0 pages with more user generated [...]

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Joreybump.com explains a tactic to reduce the amount of spam a network receives using less resources than conventional spam filters.It has been observed that when a domain has both a primary (high priority, low number) and a secondary (low priority, high number) MX record configured in DNS, overall SMTP connections will decrease when the primary [...]

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