Sendmail, Inc.

The company was founded in 1999 by Eric Allman in Emeryville, CA. Eric also created sendmail, an open source mail transfer agent while he was a student and a staff member at the University of California, Berkeley. It is the commercial version of the open source version of sendmail.^[2]

In 2005, Sendmail released the Sentrion email infrastructure platform to address the need for full-content message inspection, enabling policy-based delivery^{[clarification needed]} of all human and machine-generated email.^[3]

In 2012, Sendmail partnered with Mimecast^[4] to provide hybrid-cloud email security, archiving and continuity as some predicted that 2013 would see more organizations implementing hybrid cloud computing strategies^[5] to reduce cost and complexity of their messaging infrastructure.

In 2012, Sendmail released Sentrion REAC (Rogue Email Application Control) amid growing security, compliance and other concerns posed by the growth of application-generated email^[6] and migration of email to the cloud.^[7]

In 2013, Sendmail was acquired by security-as-a-service company Proofpoint, Inc.^[8]

1998

Released Switch, the commercial MTA

2000

Released Sendmail Milter API

2001

Released Mailstream Manager for email security and compliant policy management

2003

Released Mailcenter for the enterprise^[9]

2005

Shipped first Sentrion™ appliance^[10]

2006

Celebrated 25th anniversary of internet email (MTA)^[11]

2007

Shipped Sentrion MP ‘inbound & outbound’ Appliance

2008

Released Sentrion MPV and Sentrion™ MPQ

2009

Released Sentrion Cloud Services (SaaS)^[12]

2010

Opened Sentrion App Store (www.SentrionAppStore.com)^[13]

2011

Sendmail teams with Harris and BMC on trusted enterprise cloud^[14]

2011

Released Sentrion Critical Customer Communications Enterprise Application Suite

2012

Released Sentrion REAC (Rogue Email Application Control)^[15]

2013

Acquired by Proofpoint, Inc.