North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Problems sending mail to yahoo?
Roger Marquis wrote: > > Sounds like the party line inside Yahoo, but there are plenty of ISPs that > do a really good job of combating spam. They do it with standard tools > like RBLs, Spamassassin, OCR, ClamAV and without ineffective diversions > like SPF or DKIM. > Seen from inside, it is not spamfilters but it is the routing table. I have seen spam dropping by 98% when zerorouting some networks. Nobody complained about false positives :) But this is another story for the big ones. They might have customers. > > The problem is that it is an art, not well documented (without reading > 5 or 6 sendmail/postfix and anti-spam mailing lists for a several years), > is not taught in school (unlike systems and network administration), and > rarely gets measured with decent metrics. > That is true. Plus the rules are constantly changeing. > Not that spam really has much to do with network operations, well, except > perhaps for those pesky Netcool/Openview/Nagios alerts... At the edge it does. It can bring your VoIP down and video on demand. I know from campus networks who improved p2p service when zerorouting networks known for sending spam. Peter -- Peter and Karin Dambier Cesidian Root - Radice Cesidiana Rimbacher Strasse 16 D-69509 Moerlenbach-Bonsweiher +49(6209)795-816 (Telekom) +49(6252)750-308 (VoIP: sipgate.de) mail: [email protected] http://iason.site.voila.fr/ https://sourceforge.net/projects/iason/ http://www.cesidianroot.com/
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