3
records
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
1m
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.
mx15.zenbox.pl. 60 IN DMARC v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | a |
—
|
|
|
| + Pass | mx |
—
|
|
|
| + Pass | ptr |
—
|
|
|
| + Pass | include |
|
||
| - Fail | all |
—
|
|
SPF warnings
- The ptr mechanism is slow and discouraged in SPF
47s
mx15.zenbox.pl. 47 IN TXT "v=spf1 a mx ptr include:_spf.zenbox.pl -all"