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Re: [ietf-smtp] EHLO domain validation requirement in RFC 5321

2020-10-05 05:53:48
On Sun 04/Oct/2020 23:57:14 +0200 Keith Moore wrote:
On 10/4/20 5:46 PM, John Levine wrote:

Is there a more recent standard for doing so than postmaster@?
Um, RFC 2142 published 23 years ago.


I'm surprised John didn't mention RFCs 7480-7484. Nowadays you can get the email address of an ISP's abuse team by just feeding a simple command line program with the culprit IP address.

No need to tentative postmaster or abuse addresses at some guessed domain names or network abuse clearinghouses.

Oh, well, some ISPs have no abuse team or don't publish its email address. Whether LIRs should mandate responsive abuse teams is yet another purists-vs-realists quibbling subject.


Best
Ale
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