On Tuesday 22 June 2004 12:06 am, Brian Lavender wrote: > On Wed, Jun 16, 2004 at 10:15:18PM -0700, Rod Roark wrote: > > Seems like most of the spam that I (and thus LUGOD) are not > > successfully filtering out these days is from dynamic IPs - > > dialup, cable modem, and dynamic DSL. > > > > So I'm wondering if it's reasonable to refuse mail from > > servers that connect directly from a dynamic IP. Is anyone > > here running such a server? And if you are, are you finding > > that many sites are refusing your mail? > > > > Please reply off-list unless you think that what you have to > > say is of general interest. Also if you're not sure if your > > IP is considered dynamic, you can check it at > > "http://www.dnsbl.us.sorbs.net/cgi-bin/lookup?IP=";. > > Well, consider this. You have a valid send who is sending you email from > a dynamic IP. You would want to receive that email, right?!! > > The answer lies in SpamAssassin. I believe it scores on this blacklist. > SpamAssassin has been 100% effective with over 300+ spams in the last > 24+ hours!
100% is astounding. My experience with SA was nothing like that. But it has a huge number of options; how do you have it configured? What about false positives? Any idea how many unique spam sources are represented in those 300 messages? > The next question is, do you want to process this email? I > don't. That's why I have been testing SA-Exim. If it gets flagrant > spam from an IP, it can put in a temporary reject. Or, it can put in a > permanent reject. Or.... if it's really bad spam, you can teergrub it. > Or, say I do have a sender who does use mail server on a dynamic IP. I > can whitelist him and get his email. > > I am doing a talk on integrating SpamAssassin at the SMTP layer. The > implementation is SA-Exim. http://www.saclug.org/ Well I use Postfix. I believe the rough equivalent with that would be something like amavisd-new which runs SpamAssassin "internally", using the "before queue content filter" which Postfix introduced with release 2.1. I don't know anyone who has tried this combination yet. -- Rod _______________________________________________ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
