Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gmmb.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 16:17:32 UTC · ↺ Refresh
MX Hostnames
- gmmb-com.mail.protection.outlook.com
MX Priorities
- gmmb-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.20 (no PTR)
- 141.193.213.21 (no PTR)
Mail Server IPs
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
SOA Record
Raw SOA
pdns82.ultradns.com hostmaster.omnicomgroup.com 2019120474 7200 600 2419200 3600
Primary NS (mname)
pdns82.ultradns.com
Admin Email (rname)
hostmaster@omnicomgroup.com
Serial
2019120474
Refresh
7200s
Retry
600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
pdns82.ultradns.org
pdns82.ultradns.biz
pdns82.ultradns.com
pdns82.ultradns.net
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.oneomnicom.com include:mailgun.org -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
11 records- atlassian-domain-verification=jnECo5N3FFedMZvGze/NG2GaOw0UEzP3iXUmtmPDs29kJD205r8M0ZM7jTqNrESh
- ibmid=3727ed14-9d1f-4e67-9cb2-ba5655de7ca4
- mentimeter-95c6e5f6-5610-417e-8e94-ff654c094dbb
- google-gws-recovery-domain-verification=43918679
- openai-domain-verification=dv-e0FjRC2nIXBNFdlO3ySWObR4
- miro-verification=db9406cbf8d83d2f4aa04b54d0844333cbe87944
- smartsheet-site-validation=By49CjwnyWPjTJeFd5PmgB9w-7b06y0t
- SPFv=spf1 include:_spf.oneomnicom.com include:mailgun.org -all
- adobe-idp-site-verification=1817066a-fac4-4f8c-8f73-17464a62d219
- google-site-verification=SVRe4P0UoL9OtHhOiKwGhG1ii5uqkOa_clcCnpBVefc
- cisco-ci-domain-verification=3138c24111cb490c3655bb8230eb6f98c2f11c7f5e6d3a26c6838fda1b4b133e
Full email verification for gmmb.com
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