Facing down the masterminds of unsolicited Internet mail
THE SPAM BUSINESS
Spammers charge real money for their dubious services, and hundreds of advertisers are willing to pay. We’ll show you some innovative techniques for controlling and containing spam, including strategies for slowing down spam bots, keeping spammers from getting your address, and separating spam from legitimate email.
According to the email service provider Postini [1], of some 524 million messages the provider handled worldwide in a period of 24 hours, 88 percent were spam (345 million messages), including 2 million “special offers,” 650,000 get-rich-quick schemes, and 2 million messages with sexual content. Just 46 million legitimate emails actually reached their targets. Despite the best efforts of the experts, the spam glut isn’t going away. Most organizations focus on containing the problem to prevent losses in admin time and user productivity. We’ll show you some of the latest strategies for fighting spam in this month’s cover story. We’ll start by examining some techniques for keeping spammers from getting your address in the first place. Then we’ll show you how you can throw the spammers off your trail with a tarpit. We’ll also review some anti-spam appliances and services, and we’ll describe a custom solution for a user-trainable spam filter that operates from the server side.
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Digital Autonomy
• How the Fediverse Found Parts for Its Platforms
• The Answer Was Already on the Shelf
• Changing the Chip Industry: How Public Investment Has Grown Open Silicon
• United Nations Open Source Portal Goes Live
• EU Open Source Strategy Plays Key Role in Tech Sovereignty Package
• France Says “Au Revoir” to Microsoft
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
News
-
Working Exploit for a Linux Kernel Flaw Made Public
Even before a bug received its CVE identifier or an upstream fix, the local privilege escalation vulnerability exploit found its way into the wild.
-
r/opensource Bans AI-Assisted and AI-Related Projects
The de facto subreddit for all things open source has not only banned AI-related projects but also users who "don't speak English."
-
Bottlenecks Discovered by Meta Engineers Lead to Scalability Improvements
Thanks to a small group of engineers at Meta, the Linux kernel module kernfs has been improved, which has led to some serious gains.
-
PwnEscape Poses VM Vulnerability
A guest-to-host escape flaw in Linux KVM, named PwnEscape, might be yet another means of attacking Linux.
-
Linux Mint 27 Set for a Christmas Release
The developers behind Linux Mint have announced a Christmas release, and it looks like Santa's sack will be brimming with features.
-
Is Linus Torvalds Vibe Coding?
The creator of Linux has added AI into his process for Linux kernel development, and it's more than just for debugging.
-
openKylin 3.0 Released with Expanded AI Integration
The latest release features a pre-installed AI agent to help perform tasks.
-
DigitalOcean Ends Open Source Credits Program
In a change that has surprised many open source developers, DigitalOcean has decided to sunset its Open Source Credits Program.
-
Office 365 Available for Testing on Linux via Bottles
Linux users can now test the official Office 365, thanks to Mirko Brombin's work on Bottles.
-
Dutch Government Turns to Open Source for Digital Sovereignty
Following in the footsteps of other European countries, the Netherlands is looking to increase its sovereign digital infrastructure with open source software.
