Tag: Anti-spam techniques

woman in gray tank top looking furious

Back to Basics: Where does Spamhaus get off…

One of the more popular questions that come up deals with ISPs1 using DNSBLs2, especially Spamhaus lists. The question usually goes something like this: Who are the operators of that list and what gives them the right to regulate commerce? Are they run by a government or something? A Brief History of DNSBLs The year is… Read More

Don’t opt-out of spam?

Yesterday, Laura Atkins wrote a blog post which suggests that unsubscribing from spam doesn’t result in receiving more spam ​(Atkins 2013)​. I know that this is a project that she’s been working on for at least a month, and I don’t have any reason to doubt her results. Additionally, she links to ​(Magill 2013)​, ​(Pogue 2013)​,… Read More

Filters are stupid

Sometimes it bears remembering that many content filters aren’t score-based, but rather string-based. Because of this, you may have to more carefully craft your messages to deal with the fact that the filter cannot take context into account. And so, today I wish to share with you three different strings actually seen to have caused… Read More