nanog mailing list archives

Re: Worsening google service reputation and abuse


From: John Levine via NANOG <nanog () lists nanog org>
Date: 19 Aug 2025 18:20:57 -0400

It appears that Michael Thomas via NANOG <nanog () lists nanog org> said:
Since this is a network operator list, here's my question. What 
percentage of traffic is spam? That is, total traffic? My guess is that 
it's minuscule. That and how negatively does it cut into bottom line for 
an operator like an ISP? I hardly see ISP based email anymore these days.

In terms of percentage of total bits, I'm sure you're right.  Mail is
a sliver of bandwidth, spam is between half and 90% of that.

The problems are on the one hand, having a mailbox full of spam makes
mail less useful (I am so tired of my morning B2B blasts from Outlook
and Gmail), but on the other a lot of is linked to real crime with
significant financial consequences to the victims.

I agree that the incentives are skewed, with little incentive for
ISPs to deal with it.  I note that Comcast who used to run a large
mail system recently handed it all over to Yahoo, presumably because
Yahoo has economies of scale they don't.

R's,
John
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