There are a number of technologies currently being developed to help combat spam, phishing fraud and other email related abuse. One which has received a considerable amount of attention in recent months is SPF. Another, which may not have attracted quite as much attention, is Yahoo's domain keys. In both instances the technology is designed to help verify who is authorised to … [Read more...] about Stopping Phishers via SPF
Spam Filtering
Fraud works
I've always been fascinated by spammers. They send millions of emails out in the hope that enough people will be duped into clicking on the link and visiting whichever site they are promoting or buying into whichever service they are selling. The phishing emails vary in their complexity, but you would have thought that the majority of people would have learnt to be more … [Read more...] about Fraud works
Graphing RBLDNSD queries using MRTG
Some time ago I wrote about setting up a local mirror for a DNS blacklist using RBLDNSD and Bind. Although that works fine and definitely gives a speed up to servers on the network I'd really like to know what is happening ie. how many queries. … [Read more...] about Graphing RBLDNSD queries using MRTG
Spam Assassin Rule effectiveness
Justin has posted an interesting study of a rule's effectiveness over time. His observations are interesting. … [Read more...] about Spam Assassin Rule effectiveness
Phishing Stupidly
I've mentioned phishing fraud in the past. Most of it is quite well done and almost looks genuine I got one today that was really badly executed The first sign of it being fraudelent was the "from" part. Instead of saying "paypal" or "PayPal" they used "PaYpal", which is incorrect capitalisation. A company the size of Paypal is unlikely to make that kind of mistake The other … [Read more...] about Phishing Stupidly