7
records
Mail Servers
TTL
20m
20m
app.nansens.dk. 1200 IN MX 10 mxa.eu.mailgun.org. app.nansens.dk. 1200 IN MX 10 mxb.eu.mailgun.org.
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
20m
DMARC
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100
DMARC
RUA
mailto:[email protected]
mailto:[email protected]
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
mailto:[email protected]
mailto:[email protected]
Forensic (per-failure) reports. Often omitted for privacy or volume.
app.nansens.dk. 1200 IN DMARC v=DMARC1; p=none; pct=100; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected];
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| + Pass | include |
|
||
| ~ Softfail | all |
—
|
|
20m
app.nansens.dk. 1200 IN TXT "v=spf1 include:mailgun.org include:_spf.firebasemail.com ~all"
Text Content
TTL
firebase=nansens
20m
TXT
—
hosting-site=nansens
20m
app.nansens.dk. 1200 IN TXT "firebase=nansens" app.nansens.dk. 1200 IN TXT "hosting-site=nansens"