Postfix: e-mail filtering on dev/qa/stage environment in case of accidental e-mail sending to real customer

Here is example of my header_checks filtering by pcre regular expression table. That will help us to avoid accidental e-mail delivering to real customer from qa/dev/stage environment. As you can see below all e-mails will be rejected except those that we already whitlisted. In our case [email protected] will be whitlisted and we can use this e-mail in test purpose. Another regular expression little bit complacated and all e-mail that will match this pattern:[DIGITS]@[domain].[zone] will be delivered.

Author: GergunD

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