How to Forward Spam Sent to Spamtraps to SpamCop using qmail

I have a number of email addresses that get nothing but spam, and I like to feed these to SpamCop's quick reporting service. This is easy to do with qmail, if you know how and if you have a paid SpamCop account.

1. Create a spamtrap account and add all spam addresses as aliases (I do this with Plesk).
    
2. Create /var/qmail/mailnames/example.com/spamtrap/spamcop-digest-header
   

   From: <spamreporter@example.com>
   To: "SpamCop QuickReporting" <quick.YourIdHere@spam.spamcop.net>
   Subject: Forwarded Spam
   MIME-Version: 1.0
   Content-Type: multipart/digest; boundary="======DeathToSpam======"
   
   --======DeathToSpam======
   

3. Create /var/qmail/mailnames/example.com/spamtrap/spamcop-digest-footer
   

   
   --======DeathToSpam======--
   

4. Change /var/qmail/mailnames/example.com/spamtrap/.qmail to look like this:
   

   | true
   | cat spamcop-digest-header - spamcop-digest-footer | sendmail -t -fspamreporter@example.com
   

That's all there is to it — of course you must be sure that you really don't get anything but spam at the addresses that you treat this way! SpamCop will send you the results of your reporting.