smtpin.vvv.facebook.com. DNS propagation

Map showing DNS propagation for smtpin.vvv.facebook.com.

A records not consistent

Authoritative servers are returning different records.
  • This is normal for A records — they can be geo- or round-robin load-balanced.
  • If this is not intentional, check your DNS server configuration.
DNS server
Records returned by these servers
a.ns.facebook.com
129.134.30.12
c.ns.facebook.com
185.89.218.12
8.8.4.4
b.ns.facebook.com
129.134.31.12
d.ns.facebook.com
185.89.219.12
2a10:50c0::ad1:ff
OpenDns
208.67.222.222
NextDNS
2a07:a8c0::53:54e9
9.9.9.9