Once again, an excellent example of a use case, where giving customers a
'rwhois' or SWIP entry, would result in only that customer being
affected, and not the whole network.
However, since the mail-op channel is not the right place to talk
spamming examples, will refrain from asking for one, but do suggest that
there are many RBL's (including some of ours) that do the work for you,
picking out the good and bad.
There are many legitimate companies using Linode IP space. Of course,
would suggest that you do flag/block anything with a PTR generic record
on their IP space.
Stops those quick signup spammers, who start mailing before the DNS
updates go through :0
On 2022-03-06 4:15 a.m., Hans-Martin Mosner via mailop wrote:
Am 06.03.22 um 12:55 schrieb Konstantin Filtschew / Qameta via mailop:
Hello,
I see a lot of spam comming to our systems from this Linode Networks
since 24.02.2022:
- 45.79.0.0/16
- 172.104.0.0/15
- 45.79.0.0/16
- 192.46.224.0/21
They are all associated with this domain: wewe.global
So the problems with Linode customers sending emails to other networks
are maybe associated with this.
I’m happy to provide more information
I've already notified Linode two or three times, and the spam stopped
for a while, but resurfaced again. Looks like it is difficult to
identify the spamming customer and prevent them from signing up in the
first place, but without knowing to what extent KYC rules are in effect
I can only guess.
For now I've blocked their IP ranges, we never got any meaningful mails
from their linodeusercontent.com servers.
Cheers,
Hans-Martin
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