7
records
Name Servers
TTL
NS
—
20m
NS
—
20m
NS
—
20m
NS
—
20m
NS
—
20m
tw1.yahoo.com. 1200 IN NS ns1.yahoo.com. tw1.yahoo.com. 1200 IN NS ns2.yahoo.com. tw1.yahoo.com. 1200 IN NS ns3.yahoo.com. tw1.yahoo.com. 1200 IN NS ns4.yahoo.com. tw1.yahoo.com. 1200 IN NS ns5.yahoo.com.
SOA Details
TTL
20m
SOA
Responsible
hostmaster.yahoo-inc.com
SOA
Serial
2026041402
SOA
Times
Refresh
1h
Retry
15m
Expire
7d
Minimum TTL
10m
tw1.yahoo.com. 1200 IN SOA hidden-master.yahoo.com. hostmaster.yahoo-inc.com. 2026041402 3600 900 604800 600
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]
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
Forensic (per-failure) reports. Often omitted for privacy or volume.
No forensic report URIs (RUF).
tw1.yahoo.com. 1200 IN DMARC v=DMARC1; p=reject; pct=100; rua=mailto:[email protected];