title: How to disable postfix address verification
body: <p>I'm doing some spam/botnet research and need to accept all email that my mail server receives.  I've set postfix up, but I can't seem to figure out how to disable the sender address verification function.  During my initial tests (spoofing mail source as test@test.com), I discovered postfix checks with the sender's mail server to verify the user exists (which it doesn't in my test case).  As a result, the test message fails.  Any ideas? </p>