Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
guh-group.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 07:46:46 UTC · ↺ Refresh
MX Hostnames
- guhgroup-com0i.mail.protection.outlook.com
MX Priorities
- guhgroup-com0i.mail.protection.outlook.com: 5
A / AAAA Records
- 20.71.80.38 (no PTR)
Mail Server IPs
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
SOA Record
Raw SOA
ns0.infravesi.com postmaster.vinci-energies.com 2017062054 1200 300 1209600 3600
Primary NS (mname)
ns0.infravesi.com
Admin Email (rname)
postmaster@vinci-energies.com
Serial
2017062054
Refresh
1200s
Retry
300s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
nsb.perf1.com
ns1.infravesi.com
nsc.perf1.com
nsa.perf1.fr
ns0.infravesi.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.protection.vinci-energies.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; pct=100; sp=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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- uid4l19csrud51gaigplidmn3a
- _globalsign-domain-verification=6WIrBGmYeAZfC_BEn-Y_G8z3LboIKKz4kU3swdquA9
- SPFv=spf1 include:spf.protection.outlook.com include:spf.protection.vinci-energies.com -all
- MS=ms43974923
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