Name Servers
123yahoo.com. 1200 IN NS 1ns.yahoo.com. 123yahoo.com. 1200 IN NS 2ns.yahoo.com. 123yahoo.com. 1200 IN NS blue.foundationdns.com. 123yahoo.com. 1200 IN NS blue.foundationdns.net. 123yahoo.com. 1200 IN NS blue.foundationdns.org.
SOA Details
123yahoo.com. 600 IN SOA hidden-master.yahoo.com. hostmaster.yahoo-inc.com. 2026080601 28800 3600 1814400 600
Certificate Authority Authorization
123yahoo.com. 1200 IN CAA 0 iodef "mailto:[email protected]" 123yahoo.com. 1200 IN CAA 0 issue "digicert.com" 123yahoo.com. 1200 IN CAA 0 issue "globalsign.com"
DMARC
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
Forensic (per-failure) reports. Often omitted for privacy or volume.
123yahoo.com. 1200 IN DMARC v=DMARC1; p=reject; pct=100; rua=mailto:[email protected];
DKIM
No DKIM TXT with `v=DKIM1` was returned for the selector names we probe automatically.
SPF (Sender Policy Framework)
No SPF TXT record was returned (`v=spf1` / `spf2.0/`). SPF tells receivers which hosts may send mail for this domain; without it, aligned DMARC and spoofing defenses are weaker.
MTA-STS
This hostname does not publish an MTA-STS policy (no v=STSv1 TXT at _mta-sts.<name> and/or no policy at https://mta-sts.<name>/.well-known/mta-sts.txt).