> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Pablo Almido > Sent: Wednesday, December 19, 2007 9:15 PM > To: [email protected] > Subject: Re: [c-nsp] OT: How do you fight spam in your enterprise? I > needhelp > > > You could buy appliances from Cisco "Ironport". I heard that the > largest ISP's in the world use it.
I don't believe that is true. The largest e-mail handing ISP in the world is AOL and I know they use a custom-written in-house solution. The top postmaster there has written and spoken many times about anti-spam measures. >From a cost standpoint for the largest ISP's it would be cheaper to hire a programmer to write a spam solution than to pay a software company the licensing fee for a commercial product. The expensive commercial spamfiltering solutions only make sense for mid-tier ISPs, that is, the ISPs that have networks too big for a single admin to do everything, but are not large enough to be capitalized to the extent that they can hire a programming team to just chase spam. They have enough money to pay a commercial firm to do it, but not enough money to hire a warm body and put them on staff to do it. Keep in mind also that ISPs like AOL also file lawsuits - chasing spammers is a profit center for them. Thus the need for inhouse staff for expert testimoney and working with law enforcement and such. Ted _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
