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Corporate family Best match for “columbia.edu”
HCA INC.
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Includes
HCA INC..
Other organisations matching “columbia.edu”
Separately-registered entities that share the name — not confirmed part of the group above.
Domain footprint: columbia.edu
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:
mxa-00364e01.gslb.pphosted.com → Proofpoint, Inc. ·
mxb-00364e01.gslb.pphosted.com → Proofpoint, Inc.
SPF sends via:
%{ir}.%{v}.%{d}.spf.has.pphosted.com