3
records
Canonical Names
TTL
1m
mail.knack.com. 119 IN CNAME u2859722.wl223.sendgrid.net.
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | ip4 |
|
||
| - Fail | all |
—
|
|
20m
mail.knack.com. 1200 IN TXT "v=spf1 ip4:167.89.75.166 -all"