I just installed sac yesterday and I'm testing it atm. I get : Security key invalid on host "my.host.com" on every log lines.
What is that security key (I know it's in the registry)? How can I get a valid security key?
1) What is sac ( the product you said you installed )? Or is that a typo of some sort. What tool, specifically, are you using. What log?
2) As far as I know, no part of spamassassin will generate that message. Googling for it yields nothing, so I'm not sure if any tool anywhere in the world generates it, unless it's a very uncommon tool. Are you sure that's the exact error message?