Spam project pulls plug

ORDB gives up to spam sophistication

Anti-spam blacklist service, The Open Relay Database (ORDB), has pulled the plug after five and a half years because of spammers' growing sophistication.

ORDB was designed to deal with a technique in which spammers used SMTP proxy servers to flood the internet with junk email. The project distributed a blacklist of mail servers that allowed third-party relay -- "open relays" -- and were thus liable to be used by spammers. ORDB anti-spam blacklist shuts up shop

But the list had levelled off at around 225,000 over the past year and updates have slowed to a crawl, the volunteer-run project acknowledged. "It's been a case of a long goodbye as very little work has gone into maintaining ORDB for a while," organizers said in a message this week on the project's website. "The general consensus within the team is that open relay RBLs (Real-time Blackhole Lists) are no longer the most effective way of preventing spam from entering your network."

ORDB is essentially a victim of its own success -- five years ago around 90 percent of spam was sent through open relays, and now the figure is less than one percent, due to blocking lists and to ISPs disallowing third-party relay.

While the shift has stopped one type of spam distribution, it has also caused inconvenience for users, who were once able to use open relays to, for example, connect to mail servers from different locations. Spammers haven't been deterred and generally now rely on botnets, networks of compromised PCs, to send spam.

The project said users should remove ORDB checks from mailers immediately. As a replacement the project recommended a combination of greylisting and content-based analysis, such as dspam, bmf or Spam Assassin.

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Matthew Broersma

Techworld
Show Comments

Cool Tech

SanDisk MicroSDXC™ for Nintendo® Switch™

Learn more >

Breitling Superocean Heritage Chronographe 44

Learn more >

Toys for Boys

Family Friendly

Panasonic 4K UHD Blu-Ray Player and Full HD Recorder with Netflix - UBT1GL-K

Learn more >

Stocking Stuffer

Razer DeathAdder Expert Ergonomic Gaming Mouse

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?