We are getting slammed by Google User Content stuff both with Spam and
Bot attacks (especially Vuln scans)
We are using this
https://developers.google.com/static/crawling/ipranges/user-triggered-fetchers.json
and applying extreme rate limits to keep down the noise.
William Kern
PixelGate Networks
On 6/5/26 9:46 AM, postfix--- via mailop wrote:
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
34.4.5.0 - 34.63.255.255 Googleusercontent.com
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
141.98.10.0/24 hostbaltic / tiscali.it?
I know rspamd could deal with that, but in the cloud compute resources
have cost and I am looking for the most radical, simple,
compute-efficient solution to keep bad networks out. Are there
community-maintained efforts, like the
https://github.com/StevenBlack/hosts for hosts?
Thank,
Yuv
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