Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
defensi.one
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 01:48:58 UTC · ↺ Refresh
MX Hostnames
- defensi-one.mail.protection.outlook.com
MX Priorities
- defensi-one.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.94.89 (no PTR)
- 172.67.221.149 (no PTR)
- 2606:4700:3034::ac43:dd95
- 2606:4700:3033::6815:5e59
Mail Server IPs
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ben.ns.cloudflare.com dns.cloudflare.com 2400404428 10000 2400 604800 1800
Primary NS (mname)
ben.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400404428
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jessica.ns.cloudflare.com
ben.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:50.31.49.205 include:defensi.one._nspf.vali.email include:spf.protection.outlook.com include:spf-us.emailsignatures365.com a:b.spf.service-now.com a:c.spf.service-now.com a:d.spf.service-now.com include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=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- facebook-domain-verification=ij0hvx7pwbuib6d9gvsuyk7oxd99dd
- SPFv=spf1 ip4:50.31.49.205 include:defensi.one._nspf.vali.email include:spf.protection.outlook.com include:spf-us.emailsignatures365.com a:b.spf.service-now.com a:c.spf.service-now.com a:d.spf.service-now.com include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email -all
- v=verifydomain MS=6115880
- apple-domain-verification=T3ykb2J7ockxL9tQ
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