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Domain footprint: thierryarn.ch
Resolved live just now — where this domain's services actually run, with each address attributed by OrgIndex. A DNS observation, not registry data: many organisations run entirely on providers' networks and hold no IP space of their own.
Mail:
mta-gw.infomaniak.ch → Infomaniak Network SA
SPF sends via:
spf.infomaniak.ch
Separately, 2 organisations whose name resembles “thierryarn.ch” — these may be unrelated to the domain above.