We use BrightMail, a commercial product that uses SpamAssassin, RBLs, and their own antivirus-style signature matching service. When we bought it, it was from a company of the same name, but since then they've been bought by Symantec, and now branded as such. It works _very_ well, provides a quarantine for possible false-positives, and has really nice reporting functions. It's expensive, but the State of Louisiana has it on contract at a huge discount, it comes out to around $3/user if I remember correctly. It's sitting on a server in front of our mail servers, so it blocks over 70% of incoming email from ever having to hit the real mail servers... so it's not only saving from the annoyance of getting spam, it's saving lots of space on the destination servers.
On Thu, 2005-02-03 at 00:28 -0600, Jeffrey Lee wrote: > > > ______________________________________________________________________ > > I run a server of about 50 users, but dont see as much spam as most > people claim. I do use about 6 rbls, spamassassin and spf checks. My > FP rate is about 0.2% I have about 6 honeypots which I sign up at > various spam zones for bayes learning. Does anyone else use > SpamAssassin or RBLs? > > On Feb 3, 2005, at 12:11 AM, Blake Gardner wrote: > > Being a server administrator; I can tell you that the amount > of spam my network gets is just freaking ridiculous. One > server can process over 34000 emails per day and I bet only > 200 of them where legit. Though my spam filters catch most of > the crap, I think that email is going to be so over spammed > that people will stop using email eventually. I have almost > given up hope on my Cox email address. I have over 3000 emails > in it right now and I haven?t even bothered trying to sort > through them. > > I also think that spammers are thieves. They consume other > people?s resources and bandwidth for their own financial gain. > > Will Hill wrote: > Cnet is reporting that spammers have done the obvious and are > making their > bots use ISP mailservers. Slashdot pointed to it: > > > http://it.slashdot.org/article.pl? > sid=05/02/02/2317243&tid=172&tid=111 > > They quote Linford of Spamhouse: > > /***************** > This will cause serious problems for the e-mail > infrastructure, as it is > impractical to block mail with domain names from large ISPs. > Linford predicts > that ISPs will see a growth in the volume of bulk mail they > send and receive > over the next two months, with spam levels rising from 75 > percent of all > e-mail to around 95 percent within a year. > > > "The e-mail infrastructure is beginning to fail," Linford > warned. "You'll see > huge delays in e-mail and servers collapsing. It's the > beginning of the > e-mail meltdown." > **************/ > > He then goes on to recommend further choking email from > clients because ISPs > don't have the staff to educate their users. > > When cox blocked my email, I told them that this would > happen. > Decentralization is what makes the internet strong. Port > blocks don't help > anyone but the spammers. > > Infected or abusive computers should be disconnected until > they fix their > problems. The user won't be able to tell the difference. > Throttled email > that gets used up by spammers will look to the user as if they > were > disconnected by their ISP and the problem of explaining things > won't be > avoided. The source of the problem needs to be repudiated and > that's > Microsoft's buggy software. > > I can only hope that ISP's see their long term interest. The > alternative is > that no one will have email. Any alternative will be hijacked > the same way. > > M$ delenda est. > > _______________________________________________ > General mailing list > [email protected] > > http://brlug.net/mailman/listinfo/general_brlug.net > > > > > -- > > > Blake Gardner > > Phone: 225.248.0035 > Fax: 512-692-2666 > > modiphy ::. Phenomenal Web Design > ?modiHost ::. CRASH TESTED Dummy Approved > > > <image.tiff><logo_treatment_small.jpg>_______________________________________________ > General mailing list > [email protected] > http://brlug.net/mailman/listinfo/general_brlug.net > _______________________________________________ > General mailing list > [email protected] > http://brlug.net/mailman/listinfo/general_brlug.net
