Mark Fletcher via mailop skrev den 2023-01-20 05:20:
Hi All,
Over the past couple of days, the two servers that send email for
groups.io [1], 66.175.222.12 and 66.175.222.108, have been listed on
the Spamhaus CSS blacklist a couple times each. We're an email groups
hosting service, like Google Groups. Nothing has changed on our end
for quite a long time with those machines, and I don't believe they're
compromised. Meanwhile, the email is backing up.
yes yes
https://multirbl.valli.org/lookup/66.175.222.12.html sorbs listed not
spamhaus
https://multirbl.valli.org/lookup/66.175.222.108.html spamhaus
is this ips multi domain senders ?, or single domain ?
even if its single domain there might be one single spammer aswell
I've gone through the delisting process for the IPs. (I assume at some
point that'll stop working). I've sent an inquiry to Spamhaus' contact
form.
tip from my poi is to have multi linode ips, and then tight sender
domain to single ipv4 single ipv6 (not slaac here)
when thay get blacklisted somewhere you know the sender domain that
trigger spam listning
I'm scratching my head and feeling a bit dumb. Is there anyone here
from Spamhaus that could give me some more information as to what's
going on and how I can fix it?
+1 give me one single btc and i will do it :)
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