Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
groupcaliber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 19:27:14 UTC · ↺ Refresh
MX Hostnames
- groupcaliber-com.mail.protection.outlook.com
MX Priorities
- groupcaliber-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.135.242 (no PTR)
- 104.21.26.112 (no PTR)
- 2606:4700:3032::6815:1a70
- 2606:4700:3037::ac43:87f2
Mail Server IPs
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
elma.ns.cloudflare.com dns.cloudflare.com 2398839867 10000 2400 604800 1800
Primary NS (mname)
elma.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398839867
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
elma.ns.cloudflare.com
lloyd.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a:my.groupcaliber.com a mx include:spf.protection.outlook.com include:5127434.spf05.hubspotemail.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=reject; pct=100; aspf=s; adkim=s; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
3 records- google-site-verification=UVtp1egvHohPnsuUNMsycqoP6tVnupdMILjM6unVzMI
- google-site-verification=toUfoT8ngmSM6iy2rS0m2K86t1-OlyYcmFtxX_X5jW0
- SPFv=spf1 a:my.groupcaliber.com a mx include:spf.protection.outlook.com include:5127434.spf05.hubspotemail.net -all
Full email verification for groupcaliber.com
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