Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

This filter returns true for empty Subject and To headers, but it also returns true for missing headers. If 
the message does not contain the specified headers, the filter still returns true. 

The 

rcpt-to

 rule selects those messages where any Envelope Recipient matches the given regular 

expression. For example, the following filter drops all messages sent with an email address containing 
the string “scarface.”

The regular expression for the 

rcpt-to

 rule is case insensitive.

The 

rcpt-to

 rule is message-based. If a message has multiple recipients, only one recipient has to match 

the rule for the specified action to affect the message to all recipients. 

The 

rcpt-to-group

 rule selects those messages where any Envelope Recipient is found to be a member 

of the LDAP group given. For example, the following filter drops all messages sent with an email address 
within the LDAP group “ExpiredAccounts.”

The 

rcpt-to-group

 rule is message-based. If a message has multiple recipients, only one recipient has 

to match the rule for the specified action to affect the message to all recipients. 

scarfaceFilter:

   if (rcpt-to == 'scarface')

   {

        drop();

   }

expiredFilter:

   if (rcpt-to-group == 'ExpiredAccounts')

   {

        drop();

   }