I have an address that started receiving spam recently and so I limited what could get through but was surprised to still get an email today.
I set remaining messages to 0 and exclusive sender to .*(star|kashrus).*
The email that got through was from noreply@flashbuzzs.net. Sending an email to myself did not get through though. The exclusive sender mask should only let email in where the from field contains the word star or kashrus.
Any one know how this email could have gotten through?