My guess is these are spam support services, not spam sending services.
They might be drop boxes or service signup boxes. I've checked the /24
and /22 around these IPs and natch, nadda in SpamCop for them
Richard
On 2023-03-03 6:16 p.m., Jan Schaumann via mailop wrote:
Jarland Donnell via mailop <mailop@mailop.org> wrote:
A quick parse of my logs suggests that it's a spam-only operation, so likely
won't correlate to any particular front-end mail service. I mean just 100%
correlation with spam in my logs, and not a small amount of logs either.
Interesting that e.g., Spamhaus doesn't have it in its
RBL, nor do many others. Weird.
*shrug*
-Jan
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