Re: is it just me or...

["John R. Levine via NANOG" <nanog () lists nanog org>]

On Mon, 26 May 2025, Randy Bush wrote:
> what i actually care about is:
>  - authenticity: that you sent the message, for some value of "you,"
>    maybe your email addy[0],
>  - integrity: it was not altered (and, in this case it was, both
>    headers and text, thanks to dmarc, mailmate, etc.), and
>  - confidentiality: for some, not this, email privacy is needed
>
> from my pov there is a serious disconnect here

On my small system I feel pretty much the way you do, but large systems 
have different issues.  Someone will get a plausible sender to send them a 
message with spammy contents, then they will resend that message unaltered 
to a zillion recipients at large mail systems which is hard to detect 
quickly since the DKIM, DMARC et al. are all OK.  Being able to see there 
is an extra hop or two in the path that doesn't look like a mailing list 
is useful for them.

Or to put it another way, "it works for me" is rarely a satisfactory 
answer even if it's true.

Regards,
John Levine, johnl () taugh com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. https://jl.ly
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