Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
chbio.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-17 18:59:11 UTC · ↺ Refresh
MX Hostnames
- chbio-com.mail.protection.outlook.com
MX Priorities
- chbio-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.26.4.186 (no PTR)
- 104.26.5.186 (no PTR)
- 172.67.68.120
- 2606:4700:20::ac43:4478
- 2606:4700:20::681a:4ba
- 2606:4700:20::681a:5ba
Mail Server IPs
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.chbio.com.tw dns.cloudflare.com 2397383173 10000 2400 604800 1800
Primary NS (mname)
ns1.chbio.com.tw
Admin Email (rname)
dns@cloudflare.com
Serial
2397383173
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns2.chbio.com.tw
ns1.chbio.com.tw
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
4 records- yahoo-verification-key=M6F2AcOYZuysMyaRdIr8cvLJeyCYadYd79RZwjebIOc=
- facebook-domain-verification=zolcgzgtjnbqa6mju2ixanxskt8kwf
- google-site-verification=NRYkUNTbwdChU9fcdliPfg95Dqcmu3YMb6LoKeGhlkQ
- SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for chbio.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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