Check if header has a valid id:
< id-left @ id-right >
Infected emails will be rejected with error code at SMTP-layer.
Attachements with extensions bas|bat|chm|cmd|com|dll|exe|hta|inf|jar|js|jse|lnk|msi|pif|ps1|reg|scf|scr|vb|vbe|vbs|ws|wsf|wsh will be deleted,
recipient and sender will be informed.
All incoming emails, that passed the former tests will be delivered, even if SpamAssassin rates the email as spam. Outgoing emails, which have been rated as spam will be rejected.
Starting with spam score 3.5 "[ SPAM? ]" will be added to the subject, some other lines will be added to the header. You can define filters for these emails depending on spam score or "spam level" (= corresponding number of #).