The problem is that my spam box eventually becomes too big and fills up the hard drive, causing frustration to other users. So I decided to use logrotate to archive my spam and set up the following in a crontab:

/home/benj/evil-spam {
	rotate 7

So I can still harvest for recent ham if I need, and disk usage is kept low. This is really what I like with Unix, the possibility to use well-conceived tools in order to achieve something the programmer did not even imagined.

OK, nothing fancy there but I thought this perversion of logrotate might worth sharing. :-)