Method for email testing

Question

I am writing a program that will be emailing reports out many (~100) clients which I want to test before I spam everyone.

I want to do a test run against my producti

Answer 1

Sendmail has a Test Mode.

You just invoke sendmail with the -bt parameter. As an example:

/usr/lib/sendmail -bt -Ciu-testconfiguration.cf

Please be aware that in this method, Sendmail requires an special configuration on rewrite rules. You need to understand how Sendmail rewrites addresses in order to properly create a .cf file for Test Mode.

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Edit: See this article: http://ussg.iu.edu/usail/mail/debugging/