As of November, Suomen Perintätoimisto have been contaminating the customer servers of TeliaSonera (inet.fi) with their spam. They openly admit the use of a purchased list from Bisnode.
TeliaSonera abuse response: “B2B spam is legal.” Perhaps so, but do you want your entire customer base to suffer because you allow a spammer to abuse the facilities used by everyone? Besides, the processing of outdated and erroneous personal information is illegal, and the spamming of natural persons is illegal as well.
The hosts involved are in 188.8.131.52/24.
Excellent post from Mickey Chandler over on Spamtacular.com, one of the blogs we refer to in the sidebar: https://www.spamtacular.com/2017/01/04/back-to-basics-why-have-a-policy/
If you want to successfully deliver mail into the inboxes of your recipients, you must abide by the mailbox provider’s policy, and the ESP’s opt-in requirement simply exists in order to assist you in complying with the mailbox provider’s policy. In other words the ESP’s policy exists for one simple reason: To help you succeed.
Please find enclosed a few recordings of harassing telephone calls made from +358-41-3633495, the registered telephone number in keyup.fi, Dysnomia Oy. The voice does not belong to “Katariina”, obviously, so it’s “Niklaus”, and even though their Finnish is not native (rather Estonian-influenced), it clearly isn’t spoken by Kenyans either (w.r.t. the registered owners of Dysnomia Oy) or Arabs (w.r.t. Mohammed Sahran, the registered owner of dsn.fi, one of their spamming domains).