From massive amounts of observation, I'm quite confident in saying that
the rejection message in question is based on content filters and not IP
reputation. All day long we see rejections like this when users try to
forward spam or try to forward email from certain domains (Facebook,
eBay, PayP
On Wed, 9 Feb 2022, Patrick Ben Koetter via mailop wrote:
* Bernardo Reino via mailop :
Dear all,
I have already experienced Google ratelimiting DMARC reports every now and
then, which may be OK if they want it like that.. but this is new (to me):
[snip]
Diagnostic-Code: smtp; 550-5.7.1 [6
"that *THIS* message is likely unsolicited mail" (my emphasis): IMHO this sort
of leads to a message-based interpretation rather than a system-based one,
Patrick.
--
Von meiner Hängematte aus gesendet.
-Original Message-
From: Patrick Ben Koetter via mailop
To: mailop@mailop.org
Sent:
* Bernardo Reino via mailop :
> Dear all,
>
> I have already experienced Google ratelimiting DMARC reports every now and
> then, which may be OK if they want it like that.. but this is new (to me):
>
> Reporting-MTA: dns; katara.bbmk.org
> X-Postfix-Queue-ID: 3D2D71BE02E2
> X-Postfix-Sender: rfc8
