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Domain footprint: dian.gov.co
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:
dian.in.tmes.trendmicro.com → Amazon Web Services, Inc.
SPF sends via:
spf.protection.outlook.com · spf.tmes.trendmicro.com · spf.rpost.net · spf1.masivapp.com · _spf.us.sendclean.net
Separately, 4 organisations whose name resembles “dian.gov.co” — these may be unrelated to the domain above.