Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
s3groupltd.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 07:35:05 UTC · ↺ Refresh
MX Hostnames
- s3groupltd-com.mail.protection.outlook.com
MX Priorities
- s3groupltd-com.mail.protection.outlook.com: 1
A / AAAA Records
- 34.95.39.240 ↩ 240.39.95.34.bc.googleusercontent.com
Mail Server IPs
- 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
SOA Record
Raw SOA
dns.rebel.com noc.rebel.com 2026031901 10800 3600 604800 3600
Primary NS (mname)
dns.rebel.com
Admin Email (rname)
noc@rebel.com
Serial
2026031901
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns2.rebel.com
dns.rebel.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:142.165.199.220 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; adkim=r; aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 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
4 records- MS=ms40413402
- RY/5NqwouCeGv0VNO+SLhNL4eieO7acTXsGUzHGBywWuhBlHNbX/ag/qA9WCP9meJz2bJbwtl6pO8eHrl2zHLA==
- SPFv=spf1 include:spf.protection.outlook.com ip4:142.165.199.220 -all
- knowbe4-site-verification=c187db22625aa8c5811e17af1765035d
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