Category Archives: Christophe Wolfhugel

Easy use of Sendmail Premium Reporting

Posted on May 31, 2012 by Christophe Wolfhugel

The other day I needed to get some statistics while visiting a customer about how many accounts could eventually have compromised passwords. The first thing I needed to consider is how to determine if an account has been compromised. Our … Continue reading →

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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

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 →

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An Index of Sendmail Audio Podcasts

Posted on December 15, 2010 by Barry Shurtz

Ask the Experts: Simple Routing versus Complex Routing Ask the Experts: Messaging Infrastructure Filtering Part 4 Ask the Experts: Messaging Cost-Savings in a Difficult Economy Ask the Experts: Messaging Infrastructure Functional Techniques Part 3 Podcast: Ask the Experts: Email Directories: part … Continue reading →

Posted in Barry Shurtz, Bob Boucneau, Chris Meidinger, Christophe Wolfhugel, Daniel K. Hedrick, David Gillam, David Maislin, Don Massaro, Glen D. Vondrick, Greg Olsen, Gregory Shapiro, Jeff Kopko, Michael Donnelly, Nicholas Filippi, Podcasts, Uncategorized | Leave a comment

To Greylist or Not to Greylist?

Posted on March 12, 2010 by Christophe Wolfhugel

I’ve been thinking a lot about Greylisting lately and a post by Rogers Cadenhead in Watching the Watchers on alternative methods of stopping spammers (more on this below) got my mind going even more. Now, please bear with me as … Continue reading →

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EMEA User Conference: Using Nagios

Posted on October 14, 2009 by Christophe Wolfhugel

In today’s environment, not only must an email system do its job by routing adequately and efficiently our customers’ messages, but it must also come with a practical and widely accepted way for being monitored. Sendmail’s approach in this is … Continue reading →

Posted in Christophe Wolfhugel, Uncategorized | Tagged | 2 Comments