Email product looks to reduce spam false positives

TrustSphere looks at the relationship between senders, which can be a better indication of whether a message is spam or not

A new product from TrustSphere is tackling the problem of email incorrectly flagged as spam, an irritating and potentially costly error for businesses.

The product, called TrustVault, analyzes the communication between the sender and recipient of an email over a few weeks, looking at how many messages are sent, how often in a day and how quickly.

TrustVault builds a kind of social graph between senders and receivers, and can overrule spam filters that might normally flag a message as suspicious when it isn't. It doesn't look at an email's content.

"When we see an email from a known trusted sender that is blocked, we are able to release it from quarantine or prevent it from going into quarantine if it [the product] is configured that way," said Manish Goel, TrustSphere's CEO.

Estimates of the percentage of messages incorrectly labeled as spam vary wildly. Goel said a typical figure cited is 3.5 false positives per million emails, but he said TrustSphere has audited companies that have a much higher error rate.

Statistics aside, important emails flagged as spam may never get read and could cost a company money in either lost business or other damage. Users may very well forget to check their spam filter's quarantine for valid messages, Goel said. Some antispam products don't have a quarantine.

Goel said spam filters get it right most of the time, but even small errors multiplied by great volumes of email can disrupt a business.

TrustVault can also help a company deal with a denial-of-service attack, when IT administrators may try to slow down network connections in order to deal with an attack. The product will reserve a narrow channel for communication with trusted senders, so legitimate email can still be exchanged, Goel said.

TrustVault works alongside other antispam software. It also works with a sister product, TrustCloud, which is a comprehensive report on domains and whether they have a good reputation and are not known for sending spam.

Mark Levitt, director of enterprise and software and communications at Strategy Analytics, said TrustVault is an innovative approach that overlays traditional antispam software. "False positives are a big problem," he said.

The product may hold the most value for companies for their top management who are heavily dependent on email, Levitt said. TrustVault will cost US$1 per user per month, Goel said.

Send news tips and comments to

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.

Jeremy Kirk

IDG News Service
Show Comments



Victorinox Werks Professional Executive 17 Laptop Case

Learn more >

Sansai 6-Outlet Power Board + 4-Port USB Charging Station

Learn more >



Back To Business Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

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.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?