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Testing Sendmail Configuration - Exercise

Objective: Test a new sendmail configuration before deploying it.

This is a Java applet

This exercise uses a Java applet to simulate a UNIX command line and allows you to practice entering commands. If you do not have Java active in your browser or are behind a firewall that does not allow Java applets, you will not be able to complete this exercise. If you do not see the applet below, click OK, I’m Done to review the solution to the exercise and continue with the course.

Exercise scoring

This exercise is not scored. When you have completed the exercise, click the OK, I’m Done button to review the solution and continue with the course.


In this exercise, you will use an alternative sendmail.cf file to test your sendmail configuration. When you are sure the new configuration file is working properly, you will update the old configuration file and start the sendmail daemon. Start the simulation below and work through the situation presented.