MailRoute Executive Team

MailRoute's Executive Team

The Executive Team of MailRoute is the very same core team that created FrontBridge Technologies, the company that Microsoft acquired in 2005 to create it's hosted services division, variously known as Forefront, FOPE, and Microsoft Exchange Hosted Services. This team has reunited to make MailRoute the undisputed leader in email protection services.


Founder, Chief Executive Officer

Thomas A. Johnson is a leading authority on email protection, and the creator of an early search engine and Cloud services. He is the chairman of the board and CEO of MailRoute, Inc, headquartered in Manhattan Beach, California.

Johnson is the founder of FrontBridge, acquired by Microsoft as the foundation of their Cloud-based MS Exchange Hosted Services, now called Forefront (FOPE).

In 1984, Johnson bought the first-generation Mac and started programming it. (He still has his receipt for the 128K Macintosh.) This interest in computer programming led to Johnson spending 5 years in the UCLA Computer Science Department working for Leonard Kleinrock, the father of the Internet, networking supercomputers and workstations.

In 1993, Johnson left UCLA to re-invent the American Medical Association’s online community, which became US Health Link. Johnson suggested that they use the Internet, instead of a private network, and it was here that he created one of the first Internet search engines as well as an early Cloud application.

“The search engine was born from a program I created that basically hopped around the Internet grabbing information and dumping all of it into a big Oracle database so that you could do searches,” Johnson explains. “Then I wrote a piece of multithreaded code that could run on a few different machines that all talked to each other; it ran like one big application, but running on several servers,” says Johnson of his early Cloud configuration.

Johnson saw a place for Cloud services before they were called Cloud. As a private consultant, in 1997, Johnson realized that when he was hosting websites, which included free mailboxes, “I spent more time managing the mailbox aspect of the business than I did the webhosting.”

Recognizing a place in the market, Johnson created a high-quality third-party Cloud email filtering service. Launched as Big Fish, this company ultimately became FrontBridge and was acquired by Microsoft in 2005.

MailRoute was founded in 2002 by Johnson to set new standards in email protection services. He and his technology team have developed MailRoute's multi-layered solution to be highly efficient, reliable, and cost-effective. MailRoute offers email protection services to corporate, governmental, and educational customers; it filters inbound and outbound messages through its proprietary network of servers. The company is privately funded.


Chief Financial Officer

Mark S. Tennenbaum is a member of the board of directors of MailRoute, Inc and the company’s CFO. He is also a co-founder of FrontBridge (sold to Microsoft in 2005), the former CFO of SoftAware Networks (sold to Digital Island in 2000), and a strategic advisor to other young technology companies.

Prior to his Internet experience, Tennenbaum’s professional focus was primarily on finance and corporate development. In these capacities he helped to grow such diverse companies as Richard Branson’s Virgin Group, Kaiser Group Holdings, Landmark Theatres and Craig Corporation.

Tennenbaum holds an MBA from the Anderson School at UCLA as well as a BA in Psychology from the Pitzer College, the Claremont Colleges.


Vice President, Sales & Marketing

Rachel A. Plecas is the VP, Sales & Marketing at MailRoute, Inc, and was the Director of Communications at FrontBridge, where she worked with MailRoute CEO Tom Johnson and CFO Mark Tennenbaum.

Plecas has 15 years of overseas experience, based in Hong Kong, where she was Editor-in- Chief of Tatler Asia, a group of luxury lifestyle publications in nine countries. She also founded What’s Next, a business development company aimed at introducing Western retail brands into the China market.

Plecas consults for Asian Strategies, executing Asia-specific market research for Barclays, BBC, Rolex, HP, IBM, Motorola and other multi-nationals.

Plecas holds a BA in Literature from Oakland University as well as a degree in plant-based nutrition from Cornell University.


Start a free 30-day trial today. Use promo-code ‘Reseller.’

Contact or for more information. 


Have more questions? Submit a request


Please sign in to leave a comment.