Cisco Cisco Email Security Appliance C160 Mode D'Emploi

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Cisco AsyncOS 8.0.1 for Email User Guide
 
Chapter 9      Using Message Filters to Enforce Email Policies
  Message Filter Examples
Policy Enforcement Filters
Notify Based on Subject Filter
This filter sends notification based on whether the subject contains specific words:
BCC and Scan Mail Sent to Competitors
This filter scans and blind copies messages that are sent to competitors. Note that you could use a 
dictionary and the header-dictionary-match() rule to specify a more flexible list of competitors (see 
Block Specific User Filter
Use this filter to block email from a specific address:
Archive and Drop Messages Filter
Log and drop only the messages that have matching filetypes:
search_for_sensitive_content:
if (Subject == "(?i)plaintiff|lawsuit|judge" ) {
    notify ("admin@company.com");
}
competitorFilter:
if (rcpt-to == '@competitor1.com|@competitor2.com') {
    bcc-scan('legal@example.com');
}
block_harrasing_user:
if (mail-from == "ex-employee@hotmail\\.com") {
    notify ("admin@company.com");
    drop ();
drop_attachments: 
if (mail-from != "user@example.com") AND (attachment-filename ==
'(?i)\\.(asp|bas|bat|cmd|cpl|exe|hta|ins|isp|js)$')