Topic: Spoofing your own emails
could we smth. do if spammers masking email with construction like this :
MAIL HEADERS - From "Name Surname <email@example.com>" <firstname.lastname@example.org>
Then users got this email - they are see only - Name Surname <email@example.com> and they could think that email is safe ... often emails are with DOC or XLS attacted file with malware macros...
Of cause you can block with clamav - OLE2: Blocking all VBA macros, but this option is global for all emails, with no exceptions...
So, the main question is how to prevent using your domain email address like firstname.lastname@example.org (or another domain email address in the same mail server like email@example.com) than emails are with foreign email addresses like - firstname.lastname@example.org