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Sendmail, Inc.

From Alfawiki
Adapted from the English Wikipedia article Sendmail, Inc., available under CC BY-SA 4.0Updated 9 August 2025
Sendmail, Inc.
Company typePrivate
IndustryEmail management, computer security software
Founded1999
FounderEric Allman
FateAcquired by Proofpoint, Inc. in 2013
Headquarters
Emeryville
,
United States
Area served
Americas, Europe, Asia
ProductsSentrion platform, Sentrion REAC, Mailstream Manager, Mailcenter, Sentrion appliances and cloud services
ParentProofpoint, Inc.

Sendmail, Inc. is a company specializing in email management, headquartered in Emeryville, CA, with additional offices located throughout the Americas, Europe, and Asia.

History

Established in 1999 by Eric Allman in Emeryville, CA, Sendmail, Inc. commercializes the open-source mail transfer agent sendmail, which Allman originally created at the University of California, Berkeley.

Email Management

In 2005, Sendmail introduced the Sentrion platform for email infrastructure, designed to provide comprehensive content inspection and policy-driven delivery for both human and automated emails.

Hybrid Cloud Solutions

By 2012, Sendmail had formed a partnership with Mimecast to deliver hybrid-cloud solutions encompassing email security, archiving, and continuity. This collaboration anticipated the growing trend toward hybrid cloud adoption aimed at lowering messaging infrastructure expenses and complexity.

Application-Generated Email

Also in 2012, Sendmail launched Sentrion REAC (Rogue Email Application Control) to tackle security and compliance issues arising from the increase in application-generated emails and cloud migration.

Acquisition by Proofpoint

In 2013, Sendmail was acquired by Proofpoint, Inc., a provider of security-as-a-service solutions.

Timeline

1998
Released Switch, a commercial MTA
2000
Introduced Sendmail Milter API
2001
Launched Mailstream Manager for email compliance and security
2003
Debuted Mailcenter for enterprise-level email management
2005
Delivered first Sentrion™ appliance integrating email security
2006
Celebrated 25 years of internet email (MTA)
2007
Rolled out Sentrion MP inbound & outbound appliance
2008
Released Sentrion MPV and MPQ appliances
2009
Launched Sentrion Cloud Services (SaaS)
2010
Opened Sentrion App Store to enhance platform functionality
2011
Collaborated with Harris and BMC on trusted enterprise cloud offerings
2011
Released Sentrion Critical Customer Communications Suite
2012
Introduced Sentrion REAC (Rogue Email Application Control) appliance
2013
Acquired by Proofpoint, Inc.