On Fri, 16 Feb 2024, Matt Palmer via mailop wrote:
On Wed, Feb 14, 2024 at 07:57:09AM +0100, Hans-Martin Mosner via mailop wrote:
Is there some way to identify the host IPs which are
used by those cloud servers, so one could block incoming SMTP from them if
Microsoft can't be bothered to block outgoing SMTP?
https://www.microsoft.com/en-au/download/details.aspx?id=56519 would seem to
meet the case. I can't help but chuckle at the admonition that people
should download the JSON file each week, when they don't appear to provide a
stable URL to do so...
For Amazon and Google
"Jo" https://list.mailop.org/private/mailop/2021-June/019392.html
recommended:
AMAZON
https://docs.aws.amazon.com/general/latest/gr/aws-ip-ranges.html
https://ip-ranges.amazonaws.com/ip-ranges.json
GOOGLE
https://cloud.google.com/compute/docs/faq#find_ip_range
https://www.gstatic.com/ipranges/cloud.json
-------
For ALIBABA,
whois -H 2600:3100::
lead me to
https://whois.arin.net/rest/org/AL-3/nets
https://rdap.arin.net/registry/entity/AL-3
I have not seen these advertised so can't call them official
and they may contain legitimate mail senders ...
I don't have traffic from Alibaba so cannot judge for myself.
--
Andrew C. Aitchison Kendal, UK
and...@aitchison.me.uk
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