Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
koseina.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 05:39:08 UTC · ↺ Refresh
MX Hostnames
- koseina-com.mail.eo.outlook.com
MX Priorities
- koseina-com.mail.eo.outlook.com: 0
A / AAAA Records
- 35.172.94.1 ↩ staticip.multiscreensite.com
- 100.24.208.97 ↩ staticip2.multiscreensite.com
Mail Server IPs
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns35.worldnic.com namehost.worldnic.com 126032015 10800 3600 604800 3600
Primary NS (mname)
ns35.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126032015
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns35.worldnic.com
ns36.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:71.13.131.171 ip4:98.103.168.141 ip4:50.237.253.167 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];
⚠ 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
2 records- SPFv=spf1 ip4:71.13.131.171 ip4:98.103.168.141 ip4:50.237.253.167 include:spf.protection.outlook.com -all
- apple-domain-verification=pA0eOeHitz0hCEiL
Full email verification for koseina.com
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