Messaging Security For Today's Threats

Update from the CEO

As announced by Proofpoint on November 7th, 2017, Cloudmark has entered into an agreement with Proofpoint to purchase our company. Each company brings unique strengths to the table and we foresee the integration of technology components that will significantly improve the solutions that we bring to our customer base. The entire Cloudmark team is extremely excited to join Proofpoint as each company’s respective goals were already very closely aligned: Building the world’s most advanced security solutions for today’s leading enterprises and communications providers.

After the acquisition closes, Cloudmark will continue to operate within Proofpoint as a wholly-owned subsidiary and will continue to focus on providing our products and services to internet service providers, hosting providers, mobile network operators, and communications platforms as a service (CPaaS) providers. Please click here to view the full Proofpoint acquisition announcement press release.

-Jason Donahue
CEO, Cloudmark

Service Providers

Cloudmark is a trusted leader in messaging security that protects 1 in 8 of the world's mailboxes. With a 14-year track record, we are the vendor of choice for spam and malware protection among leading ISPs and mobile providers around the world.


Using the world's largest database of messaging threat intelligence, Cloudmark provides innovative solutions that protect your organization's most important resources. We protect your business from unwanted spam, phishing and malware.

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