If I were to make up an explanation it would center around the fact that the recipient is a German ISP. The EU has recently imposed some stringent privacy measures and maybe your ISP, while not blacklisted, has yet to meet the foreign standards? Just a guess.
On a Mac since 1984. Currently: 24" M1 iMac, M2 Pro Mac mini with 27" BenQ monitor, M2 Macbook Air, MacOS 14.x; iPhones, iPods (yes, still) and iPads.
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