Re: [ietf-smtp] own mail server: DNS / static IP / no bad reputation?

John R Levine <johnl@taugh.com> Mon, 12 October 2020 21:59 UTC

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Date: 12 Oct 2020 17:59:42 -0400
Message-ID: <a49d9c76-2cbd-c126-d469-e7b27394ce1@taugh.com>
From: "John R Levine" <johnl@taugh.com>
To: "Ned Freed" <ned.freed@mrochek.com>
Cc: ietf-smtp@ietf.org
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Subject: Re: [ietf-smtp] own mail server: DNS / static IP / no bad reputation?
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> I don't think I've seen a block or rate limit for being new propogate to 
> other, established IPs in the range. But I have seen the time it takes 
> for a source to be considered "OK" increase.

Yes, I've certainly seen that.

> My problem here is that that you seem content with coming up with an excuse
> for any blocking people do, no matter how capricious, no matter how 
> arbitrary.

I'm not saying that what they're doing is great.  But when I talk to large 
mail system operators at M3 meetings is is crystal clear that their main 
goal is to keep their users happy, and they absolutely Do Not Care about 
senders except insofar as their users are happy to get those senders' 
mail.  One of the reasons your commercial senders have to deal with so 
many rules is that at the recipient end it is often hard to tell opt-in 
commercial mail from spam (indeed the exact same mail can be opt-in to 
someone who asked for it and spam to someone else on a purchased list.), 
In my experience the most of the people who receive commercial mail do not 
care whether they get it or not.  The incentives are poorly aligned and I 
don't see any way to align them better that won't make things worse 
overall.

> Left unchecked, the outcome will be that email becomes the sole province of a
> handful of large MSP/ISPs.

There is a very long tail, small senders stil figure out how to do the 
hoop jumping.

Regards,
John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly