wtf… we cannot simply do an NS lookup in Belgium?

$ dig @"$(tor-resolve resolver1.opendns.com)" -t ns -q europeangreens-eu.mail.protection.outlook.com +tcp +nocomments +nostats +nosearch +noclass +dnssec +noauth +noquestion +nocmd

europeangreens-eu.mail.protection.outlook.com. 0 TXT "Effective April 11, 2025: Due to a court order in Belgium requiring the implementation of blocking measures to prevent access within Belgium to certain domains, the OpenDNS service is not currently available to users in Belgium"

Update

Seems relevant:

Belgian Constitution Article 25:
The press is free; censorship can never be introduced; no security can be demanded from authors, publishers or printers. When the author is known and resident in Belgium, neither the publisher, the printer nor the distributor can be prosecuted.