nanog mailing list archives
Re: Problems sending mail to yahoo?
From: Peter Dambier <peter () peter-dambier de>
Date: Sun, 13 Apr 2008 10:07:37 +0200
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: peter () peter-dambier de http://iason.site.voila.fr/ https://sourceforge.net/projects/iason/ http://www.cesidianroot.com/
Current thread:
- Re: Yahoo Mail Update, (continued)
- Re: Yahoo Mail Update Rich Kulawiec (Apr 13)
- Re: Yahoo Mail Update Ross (Apr 13)
- Re: Yahoo Mail Update Rich Kulawiec (Apr 14)
- Re: Yahoo Mail Update Matthew Petach (Apr 14)
- Message not available
- Re: Yahoo Mail Update Matthew Petach (Apr 12)
- Re: Problems sending mail to yahoo? Patrick Giagnocavo (Apr 10)
- Re: Problems sending mail to yahoo? Suresh Ramasubramanian (Apr 12)
- Re: Problems sending mail to yahoo? Peter Dambier (Apr 13)
- Re: Problems sending mail to yahoo? Barry Shein (Apr 13)
- Re: Problems sending mail to yahoo? Rob Szarka (Apr 13)
- Re: Problems sending mail to yahoo? Barry Shein (Apr 13)
- Re: Problems sending mail to yahoo? Geo. (Apr 13)
- Re: Problems sending mail to yahoo? Rob Szarka (Apr 13)
- Re: Problems sending mail to yahoo? Dave Dennis (Apr 13)
- RE: Problems sending mail to yahoo? Raymond L. Corbin (Apr 13)
- Re: Problems sending mail to yahoo? Suresh Ramasubramanian (Apr 13)