We have a spate of Spam which are a picture with some random rubbish wording at the bottom. In almost all cases, the sender's domain does not exist, e.g. New-Car-Now@poserldfnizey.net
I've noticed with one client who forwards mail to a tiscali email address that their system blocks them:
Can we do this on Spamassassin? I've looked quite carefully at all their rules but cannot see something like this on the rule list. Can it be written like tiscali obviously do?Remote host said: 553 #5.1.8 Domain of sender address <staggeringq@natpaymail.org> does not exist