Category Archives: Email Security

Phishing: Preparing Your Last Line of Defense

Posted on March 20, 2013 by Barry Shurtz

You’re hurried. You’re under deadline. Clicking, clicking, clicking away at your keyboard. You can hit the backspace after every typo, but if you accidentally click the wrong emailed link, there are no second chances. You’ve just fallen prey to a … Continue reading →

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Sendmail and Mimecast Join Forces

Posted on December 3, 2012 by Barry Shurtz

This morning Sendmail announced a new strategic partnership with Mimecast that we think our customers will be really excited about as they consider different options for moving certain email functions to the cloud. After discussions with many of our customers … Continue reading →

Posted in Barry Shurtz, Cloud, Email Backbone, Email Security, Sentrion Cloud Apps Powered by Mimecast | Leave a comment

Improving STARTTLS authentication in the Sendmail MTA

Posted on May 24, 2012 by Christophe Wolfhugel

After having worked on what I think is the right way to setup X.509 certificates for use in SMTP STARTTLS transactions (see my previous blog entry here), I am continuing my work on how we can improve the way the … Continue reading →

Posted in Christophe Wolfhugel, Email Security, Open source | Tagged , , | 2 Comments

SecurityWeek: When to Deploy a Load Balancer for Email

Posted on June 30, 2011 by Greg Olsen

In my latest SecurityWeek column, “When to Deploy a Load Balancer for Email,” I discuss a common load balancer configuration, as well as where to deploy a load balancer. I’ve also highlighted some of the best practices for deploying them … Continue reading →

Posted in Barry Shurtz, Email Security, Greg Olsen, SecurityWeek | 1 Comment

SecurityWeek: The Other Things You Can Do with TLS

Posted on June 28, 2011 by Greg Olsen

If you’re familiar with Transport Layer Security (TLS), chances are you think of it as a simple means of securing the transmission of email between two mail transfer agents (MTAs) and the encryption of email. However, the near-universal feature of … Continue reading →

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SecurityWeek: Are you blocking your own email?

Posted on June 3, 2011 by Greg Olsen

It’s a problem that occurs frequently in the workplace—when legitimate email is discarded as spam, slipping under our radar. Insurance, mortgages, real estate, and private wealth management are just a few examples of industries that rely on a network of … Continue reading →

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Creating the right Certificates for STARTTLS use in SMTP

Posted on May 19, 2011 by Christophe Wolfhugel

Recently I have been playing  around with STARTTLS, SMTP & Enforcement of STARTTLS policy. This has led me to make several suggestions for evolutions on the way the sendmail open source MTA should handle this enforcement – I will address … Continue reading →

Posted in Christophe Wolfhugel, Email Security, Open source | 1 Comment

Wall Street Journal asks: Is Cloud Computing Right for Your Company?

Posted on April 28, 2011 by Barry Shurtz

I came across a recent article in the Wall Street Journal by Robert Plant, (no not that Robert Plant!) an associate professor at the University of Miami, which focuses on how the cloud seems to be an attractive option for … Continue reading →

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