News
News
6/2/2005
07:58 AM
Connect Directly
RSS
E-Mail
50%
50%

Yahoo, Cisco Combine Anti-Spam Efforts

The technology merges two cryptography-based techniques to help determine whether the E-mail's sender is legitimate.

SAN JOSE, Calif. (AP)--Network equipment maker Cisco Systems Inc. and Internet portal Yahoo Inc. are combining their efforts to combat E-mail spam and forgery in a step that's expected to help expand adoption of the technology.

The move, announced Wednesday, combines two techniques that rely on cryptography to help determine whether the sender of an E-mail message is legitimate. Sending messages using a false address is a common tactic of spammers.

"This is the first time that we've had something fundamental to the mail system that the vendors could get together and agree on," said Sendmail Chief Technology Officer Eric Allman, an E-mail pioneer who helped merge the technologies. "That's an amazing thing right there."

The combined technology, DomainKeys Identified Mail, borrows elements from Yahoo's Domainkeys and Cisco's Internet Identified Mail (IIM) system.

Though there are technical differences, both attach scrambled digital signatures to mail, which then can be checked to ensure that it was actually sent from the domain in the sender's address. Users typically won't see the information unless they view the message's header.

"We made the decision that, on the surface level, it was going look more like DomainKeys than IIM," Allman said. "At this point, Yahoo has more of an installed base than Cisco has. We wanted to with the way that would be the easiest upgrade path."

Both Yahoo and Google Inc.'s Gmail have deployed Domainkeys. Yahoo's e-mail service is receiving more than 350 million messages signed by Domainkeys each day, said Miles Libbey, anti-spam product manager for Yahoo Mail.

Other companies, including Microsoft Corp., have proposed other antispam technologies. Eventually, such a system is expected to become part of the Internet E-mail standard.

Comment  | 
Print  | 
More Insights
The Business of Going Digital
The Business of Going Digital
Digital business isn't about changing code; it's about changing what legacy sales, distribution, customer service, and product groups do in the new digital age. It's about bringing big data analytics, mobile, social, marketing automation, cloud computing, and the app economy together to launch new products and services. We're seeing new titles in this digital revolution, new responsibilities, new business models, and major shifts in technology spending.
Register for InformationWeek Newsletters
White Papers
Current Issue
InformationWeek Tech Digest - July 22, 2014
Sophisticated attacks demand real-time risk management and continuous monitoring. Here's how federal agencies are meeting that challenge.
Flash Poll
Video
Slideshows
Twitter Feed
InformationWeek Radio
Archived InformationWeek Radio
A UBM Tech Radio episode on the changing economics of Flash storage used in data tiering -- sponsored by Dell.
Live Streaming Video
Everything You've Been Told About Mobility Is Wrong
Attend this video symposium with Sean Wisdom, Global Director of Mobility Solutions, and learn about how you can harness powerful new products to mobilize your business potential.