Canonical Names

TTL
5m

IPv4 Addresses

TTL

IPv6 Addresses

TTL

Mail Servers

TTL

DKIM

TTL
DKIM Selector k2
v=DKIM1 k=rsa
11m
Public Key
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOw...
DKIM Selector k3
v=DKIM1 k=rsa
11m
Public Key
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsYGiMSn7fsUq...

SPF (Sender Policy Framework)

TTL
SPF SPFv1
Qualifier Mechanism Target / value Valid Details
+ Pass include
- Fail all
5m

DNSSEC Next Secure

TTL
NSEC
.mail.upstart.com ["TYPE65", "TYPE64", "TYPE61", "TYPE55", "TYPE53", "TYPE52", "NSEC", "RRSIG", "TYPE44", "TYPE37", "TYPE35", "SRV", "TYPE29", "AAAA", "TXT", "MX", "TYPE13", "A", "CAA", "TYPE256"]
20m