I configured some rules to send notification emails when an email with an attachment ".mp3" arrived
It does everything correctly, but does not send the notification email.
In the log, just the failure.
I have create some blacklist entry for a test email address and use the default email filter action object "Block". If I send some email from this blocked address, message is blocked correctly but PMG send 250 O.K. to the sender. But email is blocked and dropped from PMG and I can't...