We run v8.03 on a Win NT 4.0 box. I must say that I am thoroughly unimpressed by this server software, especially its anti-spam features. I put in just as much time dealing with spam as I did when we were still using v6.x, which didn't have any anti-spam features. I have some users back up to receiving 25-30 spams a day. And no matter how much I use antispamseeder.exe, the spam getting through never decreases and the false positives that get snagged never decrease. Addresses in the white list don't always work, and my response from Ipswitch was "you must have connection filtering enabled and that's blocking it," even though I told them we do not. The queue manager chokes about once a month, requiring that service to be reset, which isn't so bad except for the fact that it takes everyone an hour or two to realize that they haven't received any mail in an hour or two. The logs only provide moderate help -- I'm still pulling for them to allow the admin to insert an X-header to spam AND forward it to a different mailbox.
I've basically been on a rant, but I do have a question for you folks... what have you found to be the most effective method of fighting spam while avoiding false positives? I even attended a two-day Ipswitch seminar to have them answer this question. Their answer? They didn't give me a straight one. Biggest waste of $1500 I have ever seen.
Declude. http://www.declude.com - It takes a while to educate yourself on how it works, how to configure it, but once it is working, it catches the vast majority of spam, with very very few false positives. Can't say enough about it.
Declude also includes a queue manager that will get around your stuck queue.
