I have several domains that are constantly sending me spam.
However, when I add them to the sending blacklist, this does not stop them.
This is becasue they change the from and reply-to address's frequently.
However the domain name of the sending mail server stays the same, which i can see via the message headers.
Is there anyway to block domains mentioned in the email headers?
Or anyway to block domains which send the mail, and are shown in reverse DNS?
Thanks
Alex
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