Cisco Cisco Email Security Appliance C370 User Guide
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Cisco IronPort AsyncOS 7.5 for Email Advanced Configuration Guide
OL-25137-01
Chapter 6 Using Message Filters to Enforce Email Policies
The following example notifies an administrator if the signer is not from
example.com:
example.com:
The following example adds a header if the message has an X.509 certificate:
The following example adds a header if the message’s certificate does not have a
signer:
signer:
NotOurSigners: if signed-certificate("signer") AND
signed-certificate("signer") != "example\\.com$" {
notify("admin@example.com");
}
AnyX509: if signed-certificate ("issuer") {
insert-header("X-Test", "X.509 present");
}
NoSigner: if not signed-certificate ("signer") {
insert-header("X-Test", "Old X.509?");
}