Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
yfai.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 03:02:51 UTC · ↺ Refresh
MX Hostnames
- yfai-com.mail.protection.outlook.com
MX Priorities
- yfai-com.mail.protection.outlook.com: 1
A / AAAA Records
- 13.92.130.96 (no PTR)
Mail Server IPs
- 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
- 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
SOA Record
Raw SOA
dns9.hichina.com hostmaster.hichina.com 2026011209 3600 1200 86400 600
Primary NS (mname)
dns9.hichina.com
Admin Email (rname)
hostmaster@hichina.com
Serial
2026011209
Refresh
3600s
Retry
1200s
Expire
86400s
Minimum TTL
600s
Nameservers (NS)
dns10.hichina.com
dns9.hichina.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:180.166.112.50 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- google-site-verification=Lpmnxw8dK80WDdr7-qjY_z8hnyNi8kQFV_Aq6dLHLcc
- MS=ms10127234
- SPFv=spf1 ip4:180.166.112.50 include:spf.protection.outlook.com -all
- ird3ekb3smtig55u6qrcmlmv5r
- 9tvg8pqj7aidjq632f4164gc2u
- 244542858-323984341
- apple-domain-verification=SM1fgPUP4Cpctgcs
Full email verification for yfai.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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