On Thu, 2009-07-23 at 12:25 -0400, Dan Schaefer wrote: > > Are you quite sure that an upstream copy of SA, e.g. in your ISP or at a > > sender site that scans for outgoing spam, hasn't already added X-* > > headers to the message? > > > > > > Martin > > > > > No. Is that even possible to track down? > Sure - look at any incoming message's headers to see if there are any that didn't come from your copy of SA. Each set has a X-spam-checker-version header that gives the name of the SA host that added that header set. If that's a possibility, just make sure your filter ignores header sets that aren't yours. AFAIK your SA header set it always the first in the message headers.
Martin
