Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kosiuko.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 08:59:10 UTC · ↺ Refresh
MX Hostnames
- kosiuko-com.mail.protection.outlook.com
MX Priorities
- kosiuko-com.mail.protection.outlook.com: 0
A / AAAA Records
- 151.101.1.124 (no PTR)
- 151.101.193.124 (no PTR)
- 151.101.65.124
- 151.101.129.124
Mail Server IPs
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
carioca.ns.cloudflare.com dns.cloudflare.com 2400021454 10000 2400 604800 1800
Primary NS (mname)
carioca.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400021454
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jake.ns.cloudflare.com
carioca.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=none;adkim=s;aspf=s;pct=100;fo=1;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
default._domainkey
dkim._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- google-site-verification=qPXBs-2OJGqj9BJkMXOK-a7DbQ2z0meH2VJ-QST1rYI
- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms93221362
- google-site-verification=R7D8cx14XqeXQpIKolNJ9L31wOyaacS_q2xsYSdHkNw
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