North American Network Operators Group|
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Re: How do you stop outgoing spam?
On Tue, Sep 17, 2002 at 08:35:03PM +0200, firstname.lastname@example.org said: [snip] > > Much more complex to implement and manage; doesn't scale well. The fewer > > decisions the anti-spam system has to make, the better it will work. If it > > only has to decide whether or not a specific IP/port combination has > > exceeded > > a certain threshold, it will run much more smoothly than if it's examining > > the contents of each packet. > > Indeed, that will be a lot more scalable. But if you still have > to look into each packet to see which ones are link encrypted (and > therefore should be left alone) and which ones aren't (and therefore > should be transparent proxied and/or traffic-shaped), that is quite a > bit more work. > > The question is how much abuse is too much? Is it okay to allow > all open port 25 connections (traffic-shaped to low average > bit-rates), or is any abuse too much? Even the best solution will only approach 100% effectiveness as a limit. As in many things, it's a tradeoff - how much hassle are you willing to undergo for a steadily-diminishing return, 80/20 rule, etc. Personally, I'd be happy for 80% of the operators out there to implement the easiest 80% of things required to stop spam. If people would just take even the most basic of steps required to block spam, the picture would improve drastically for all of us. -- -= Scott Francis || darkuncle (at) darkuncle (dot) net =- GPG key CB33CCA7 has been revoked; I am now 5537F527 illum oportet crescere me autem minui