I'm changing postfix installations from one installed years ago by people who are no longer here on an operating system which is no longer supported, and I'd like to get a sampling of real data from the existing postfix installation to test the new installation.
So, is there a way to get a copy of all e-mails going through a postfix saved somewhere?
Please note that most stress test tools I found out there are not adequate for our needs, because what most needs testing is how anti-spam and anti-virus are reacting, and the stress testers I found generate random data instead of using real samples.