Cisco Cisco Email Security Appliance C160 Mode D'Emploi

The 

strip-headers

 and 

insert-header

 actions can be used in combination to 

rewrite any message headers in the original message. In some case, it is valid to 
have multiple instances of the same header (for example, 

Received:

) where in 

other cases, multiple instances of the same header could confuse a MUA (for 
example, multiple Subject: headers.)

When working with headers, remember that the current value of the header 
includes changes made during processing (such as with filter actions that add, 
remove, or modify message headings). See 

 for more information.

The 

edit-header-text 

action allows you to rewrite specified header text using 

the regular expression substitution function. The filter matches the regular 
expression within the header and replaces it with a regular expression you specify. 

For example, an email contains the following subject header:

Subject: SCAN Marketing Messages

The following filter removes the “SCAN” text, and leaves the text, “Marketing 
Messages”, in the header:

After the filter processes the message, it returns the following header:

Subject: Marketing Messages

The 

edit-body-text()

 message filter is similar to the 

Edit-Header-Text()

 

filter, but it operates across the body of the message instead of one of the headers. 

Remove_SCAN: if true

   {

      edit-header-text (‘Subject’, ‘^SCAN\\s*’,’’);

}