How do I add a feild to the LOGFILE?

Hi all,

How do I add a field to the LOGFILE. This is the default log data:

> From brighouse5174(_at_)yahoo(_dot_)com Fri Jan 25 11:11:22 2002
 Subject: ATTRACT WOMEN                OE
  Folder: /usr/sbin/sendmail -oi giojososailing(_at_)yahoo(_dot_)com            
     
5383
> From tim(_at_)thaistuff(_dot_)com Fri Jan 25 11:34:18 2002
 Subject: Spamtrap:  make money fast
  Folder: /usr/boxes/rice/thaistuff.com/spam                              
1217

I want to add the: "X-spamtrap:" field to it like this:

> From tim(_at_)thaistuff(_dot_)com Fri Jan 25 11:34:18 2002
 Subject: Spamtrap:  make money fast
  Folder: /usr/boxes/rice/thaistuff.com/spam                              
1217
  X-spamtrap: { whatever is found }

                                               
-- 
Best Regards,

Tim Rice
---------------
Stationery & Stuff
Phuket Thailand
http://www.thaistuff.com
http://www.computerstuff.net
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