Sendmail, Inc. provides message processing appliances, applications, and services that enable enterprises to modernize their messaging infrastructures.

Sentrion Message Processors:

Hard Appliances
Virtual Appliances

All Sentrion Message Processors run on the Sentrion Message Processing Engine, which includes an enhanced version of the Sendmail Open Source MTA and runs dozens of applications found in the Sentrion Application Store.

Sendmail also provides services and support for sendmail Open Source MTA users.

Sendmail, Inc. continues to support Open Source solutions and to advance the Open Source sendmail MTA. Over the past years, hundreds of new features and improvements have been made to the sendmail MTA including support for authentication, message filtering plug-ins (Milter), and external database lookups.

Ask Sendmail about the Messaging Architecture Review and Open Source Support Programs.

What happened to the sendmail.org home page?

Podcast: Greg Shapiro, VP Engineering, discusses the status of sendmail open source and the Sendmail Sentrion MPE

Milter.org is the largest open source resource center for the world's leading mail filters (or Milters). The site includes a catalog of nearly 100 open source and commercial Milters.

The Sendmail API "Milter" enables third-party programs to access mail messages as they are being processed by the MTA. This allows them to examine and modify message content and meta-information during the SMTP transaction.

Milter developers are encouraged to contact Sendmail, Inc. if you are interested in certifying a Milter application to run on the Sendmail Sentrion Message Processor platform and to add your application to the Sentrion Application Store.