> > Thursday, May 20, 2004, 5:10:15 PM, you wrote: > > AM> We've been encountering a problem with Spamassassin and emails with > AM> long headers. One particular example keeps getting sent through our > AM> system (many, many copies), which has about 90KB of header (mostly a > AM> very long To: line). This has a disastrous effect on the performance > AM> of Spamassassin. I was wondering if there's a simple way to set a > AM> limit in Spamassassin so it only handles, say, the first 8k of any > AM> headers? That way, we should be able to avoid this sort of problem in > AM> future. > > I'd be more interested to find out /why/ this long header is causing a > performance problem. If the problem is due to a 90k To, then IMO only a > few rules would normally even attempt to match on it. > > Do you have any custom header To or ToCc rules? Custom full message > rules? Do any of those include .* or similar patterns that can be > expensive on long strings? >
Nope, no custom header rules. Vanilla spamassassin + bigevil rules. Looking at the spamassassin code, the whitelist code seems to look at everything in the To: field for some reason...
