Cloudmark

Cloudmark, Inc is a privately held company, San Francisco-based, providing protection against spam, viruses, phishing, and similar threats that affect email.

Cloudmark claims to protect about one billion subscribers for the world's largest carrier networks, including over 75 percent of all major service providers in the United States and Japan.[1] Its client reference list includes: Cablevision, Comcast, Cox Communications, EarthLink, Rackspace, Reliance Connects, Swisscom, TDC, Orange, XS4ALL (KPN), as well as social networkings companies MySpace [2] and probably Facebook.[3]

Company activity

Cloudmark was founded in September 2001 by Vipul Ved Prakash and Jordan Ritter.[4][5]

Cloudmark sits on the board of directors of the Messaging Anti-Abuse Working Group, and the steering committee of the Anti-Phishing Working Group,[6] it also works with Sendmail,[7] Habeas,[8] IBM,[9] ReturnPath and Yahoo!.[10]

In 2005, Cloudmark franchised some companies worldwide to deploy its anti-spam and anti-phishing products, among which SynapseIndia targeted 50,000 mailboxes in one quarter.[11]

In February 2010, Cloudmark acquired Bizanga Ltd., the developer of a message processing platform.[1]

Process Overview

Cloudmark claims to be "a comprehensive global sender monitoring and analysis system that delivers timely and accurate reputation on good, bad, and suspect senders." Cloudmark provides an extensive overview of the approach it uses to make various determinations of "reputation" quality. Spam filtering is collaborative. Cloudmark users practically "vote" what’s spam and what not. The method is known as Vipul's Razor.

However, Cloudmark does not disclose which specific criteria were applied in its determination of “reputation” quality related to a discrete email sender. Nor does Cloudmark make available a discrete list of email senders which are subject to an adverse reputation determination. As a result, the administrators of a Cloudmark blocked email server have no opportunity to determine whether or not Cloudmark may have unjustly assigned a less than acceptable reputation to the email server. Many other providers of reputation assessments do have this feature.

Once Cloudmark assigns an adverse determination to a sending email server, the entire stream of email sent from it to a server get blocked from delivery, if the receiving server applies Cloudmark's reputation assessment in its email acceptance rules. The recipient sends a generic message back to the sending server for each rejected message indicating that a transmission to a Cloudmark-designated recipient was refused. The message doesnot disclose the specific reason for the rejection. The intended recipient is not notified that email from the server is being uniformly blocked. This operation is typical of reputation-based services.

Cloudmark does provide a link to an on-line form to potentially unblock a mail sender (“reset”), subject to Cloudmark's review process and approval. However, it can take up to 48 hours for the block to be removed.

See also

References

  1. 1 2 Patrick Hoge (2010-02-17). "Cloudmark to buy Bizanga". San Francisco Business Times. Retrieved 2010-05-28.
  2. ↑ Robin Wauters (2010-03-03). "Messaging Security Company Cloudmark Raises $23 Million From Nokia, Others". TechCrunch. Retrieved 2010-05-30.
  3. ↑ Brad Stone (2010-11-18). "Dear E-Mail: Die Already. Love, Facebook". Bloomberg Businessweek. Retrieved 2010-02-05.
  4. ↑ Chris Anderson (writer) (2002-09-01). "Spam-Haters of the World Unite!". Wired (magazine). Retrieved 2009-10-25.
  5. ↑ Robert Haskins (2005-03-11). "Interview with Vipul Ved Prakash" (PDF). ISPadmin. USENIX. Retrieved 2009-10-25.
  6. ↑ Brenda Ropoulos (2006-06-26). "Cloudmark Stops Viruses Before They're Even Named". Press release from Cloudmark, Inc. OpenPR. Retrieved 2009-10-25.
  7. ↑ Stefanie Olsen (2003-11-02). "Sendmail, Cloudmark team against spam". CNET. Retrieved 2009-10-25.
  8. ↑ Mickey Alam Khan (2008-02-20). "Habeas, Cloudmark partner for certified mobile email delivery". Mobile Marketer. Retrieved 2009-10-25.
  9. ↑ Keith R Hutchinson (2009-05-25). "Cloudmark and IBM BladeCenter". IBM Corporation. Retrieved 2009-10-25.
  10. ↑ Ken Magill (2008-01-29). "Yahoo!, Cloudmark Implement Return Path Certification Scheme". DIRECT. Retrieved 2009-10-25.
  11. ↑ Franchisee Hired

External links

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