Hi,
a bit late, but just adding a data point:
Am 05.06.26 um 18:46 schrieb postfix--- via mailop:
Hello list, may I pick the accumulated wisdom and experience?
any useful traffic from these subnets:
18.32.0.0 - 18.255.255.255 Amazonaws.com
As a mail source, this is used by some legitimate senders. I'd prefer if they used dedicated mail infrastructure with a
responsible operator, of course, but you can't always have what you want.
However, the cloud file hosting service of AWS is currently being abused for massive phishing runs so that I hold any
mail referencing a *.amazonaws.com domain for manual vetting.
34.4.5.0 - 34.63.255.255 Googleusercontent.com
Block. I've not seen any good come from there, ever.
I am thinking of just dropping them at the firewall and call it a day. I have not yet advertised my super clean new
mail server and there is already a stream of abuse.
also from:
64.62.197.0/24 shadowserver.org
Can't say anything personally, but apparently they are white-hat as reported by
other list members.
141.98.10.0/24 hostbaltic / tiscali.it?
Hostbaltic has been on my block list for a long time for reasons...
Cheers,
Hans-Martin
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