Hello I receive periodically some spams that pretend to be from my domain.
Looking in emaila headers I can see where the email come fromReceived: from 174.subnet222-124-154.static.astinet.telkom.net.id (unknown [222.124.154.172])
Of course the header has been rewrited but is there a possibility with postfix
to refuse that kind of emails that comes from an explicitly outer IP address but pretend to be in my domain ? Thanks