hawky--- via Postfix-users skrev den 2024-09-20 17:35:
Hi Wietse,
we are struggling with t-online.de: As you may know as SMTP client you
have to fulfill a bunch of requirements to be able to send mails to
t-online.de. From time to time we receive mails from t-online.de, but
can't answer.
So our idea is, in case the mail comes from t-online.de, we process and
delivery the mail but return an (meaningful) error message to the
t-online.de SMTP client.
This is meant as signal so that huge email provider can't dictate their
rules (besides SPF, DKIM, DMARC, etc. what we support) - and should
prevent a discussion like: "Just fulfill the requirements..." ;-)
more simple to add to bind9 rpz zone
$ORIGIN .
$TTL 300
rpz.localhost IN SOA meed.to.know.only. root.localhost. (
redacted ; Serial
60 ; Refresh
60 ; Retry
604800 ; Expire - 1 week
60 ) ; Minimum
rpz.localhost<->IN NS localhost.
rpz.localhost<->IN<---->A<----->127.0.0.1
rpz.localhost<->IN<---->AAAA<-->::1
$ORIGIN de.rpz.localhost.
t-online<------>IN<---->CNAME<->.
# *.t-online<------>IN<---->CNAME<->. not yet, be fair to report on
subdomain
and hello its weekend be happy
https://dmitry.gr/?r=05.Projects&proj=35.%20Linux4004#_TOC_6e4be76702e2cb4aa9bdacb486549f15
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