Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kbig.biz
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 19:37:38 UTC · ↺ Refresh
MX Hostnames
- kbig-biz.mail.protection.outlook.com
MX Priorities
- kbig-biz.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.72.76 (no PTR)
- 172.67.176.101 (no PTR)
- 2606:4700:3034::ac43:b065
- 2606:4700:3037::6815:484c
Mail Server IPs
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
betty.ns.cloudflare.com dns.cloudflare.com 2397023620 10000 2400 604800 1800
Primary NS (mname)
betty.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397023620
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
betty.ns.cloudflare.com
norm.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf2.mizecpas.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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- MS=ms16504943
- google-site-verification=H56wEE_td1nLe1--XJ5vyl-OJWx2YoMYZ1I92smI6io
- SPFv=spf1 include:spf.protection.outlook.com include:spf2.mizecpas.com -all
- 629c51b0-ffe9-450e-98e3-5f1fb1bdb9a2
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