MX records not consistent
Authoritative servers are returning different records.
- This likely indicates a DNS server configuration issue.
- Records may not have propagated among authoritative servers yet.
DNS server
TTL
Time To Live
The amount of time a DNS record is cached for.
Records returned by these servers
The official source of information for this domain,
managed by the owner of columbia.edu .
managed by the owner of columbia.edu .
ext-ns1.columbia.edu
128.59.1.1
United States of America
129.153.22.43
India
14.96.96.120
Netherlands
144.31.92.52
Brazil
187.120.253.248
Russia
194.190.153.232
Ukraine
37.17.246.57
South Africa
41.0.172.36
Canada
51.79.40.76
Australia
58.96.61.45
2a10:50c0::ad1:ff
2606:4700:4700::1111
2001:4860:4860::8888
NextDNS
2a07:a8c1::53:54e9
OpenDns
2620:119:53::53
9.9.9.9
The official source of information for this domain,
managed by the owner of columbia.edu .
managed by the owner of columbia.edu .
auth1.dns.cogentco.com
66.28.0.14
The official source of information for this domain,
managed by the owner of columbia.edu .
managed by the owner of columbia.edu .
auth2.dns.cogentco.com
66.28.0.30
The official source of information for this domain,
managed by the owner of columbia.edu .
managed by the owner of columbia.edu .
ns1.lse.ac.uk
158.143.96.8
No MX records found