7
records
Name Servers
TTL
NS
—
5m
NS
—
5m
i.sinet.ad.jp. 300 IN NS dns01.sinet.ad.jp. i.sinet.ad.jp. 300 IN NS jpnac01.sinet.ad.jp.
Mail Servers
TTL
MX
—
10
5m
MX
—
20
5m
i.sinet.ad.jp. 300 IN MX 10 i1.i.sinet.ad.jp. i.sinet.ad.jp. 300 IN MX 20 i2.i.sinet.ad.jp.
SOA Details
TTL
5m
SOA
Responsible
postmaster.sinet.ad.jp
SOA
Serial
2024011902
SOA
Times
Refresh
30s
Retry
1m
Expire
6m
Minimum TTL
3m
i.sinet.ad.jp. 300 IN SOA dns01.sinet.ad.jp. postmaster.sinet.ad.jp. 2024011902 30 60 360 180
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
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100
DMARC
RUA
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
No aggregate report URIs (RUA).
DMARC
RUF
Forensic (per-failure) reports. Often omitted for privacy or volume.
No forensic report URIs (RUF).
i.sinet.ad.jp. 300 IN DMARC v=DMARC1; p=none
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | ip4 |
|
||
| + Pass | ip4 |
|
||
| ~ Softfail | all |
—
|
|
5m
i.sinet.ad.jp. 300 IN TXT "v=spf1 ip4:150.100.1.5 ip4:150.100.0.5 ~all"