sun818 - 8:13 pm on Nov 13, 2008 (gmt 0)

> For a 75% drop in spam overnight it had to be the
> servers that were actually sending the spam that went down.

Not really. Zombie computers still need to receive commands from another computer. These servers are temporarily unavailable, but once the spammers set up elsehwere, it'll be business as usual. That is, of course, if the trojan coder anticipated this type of scenario.