6
records
IPv4 Addresses
TTL
my.rackset.com. 300 IN A 104.21.12.106 my.rackset.com. 300 IN A 172.67.194.28
IPv6 Addresses
TTL
my.rackset.com. 300 IN AAAA 2606:4700:3033:0:0:0:AC43:C21C my.rackset.com. 300 IN AAAA 2606:4700:3035:0:0:0:6815:C6A
DMARC
TTL
DMARC
Policy
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
none
quarantine
reject
5m
DMARC
Subdomain Policy
Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.
none
quarantine
reject
DMARC
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100
DMARC
RUA
mailto:[email protected]
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
mailto:[email protected]
Forensic (per-failure) reports. Often omitted for privacy or volume.
my.rackset.com. 300 IN DMARC v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r; pct=100; fo=1; rf=afrf; ri=86400; rua=mailto:[email protected]; ruf=mailto:[email protected]
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| + Pass | a |
—
|
|
|
| + Pass | mx |
—
|
|
|
| + Pass | ip4 |
|
||
| ~ Softfail | all |
—
|
|
5m
my.rackset.com. 300 IN TXT "v=spf1 include:_spf.google.com a mx ip4:157.90.105.115 ~all"