Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gmb.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 22:31:39 UTC · ↺ Refresh
MX Hostnames
- gmb-com.mail.protection.outlook.com
MX Priorities
- gmb-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10 (no PTR)
Mail Server IPs
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns53.domaincontrol.com dns.jomax.net 2026022305 28800 7200 604800 3600
Primary NS (mname)
ns53.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026022305
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns54.domaincontrol.com
ns53.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a a:mail.gmb.com ip4:173.13.19.177 ip4:64.141.168.74 ip4:216.230.14.238 include:relay.mailchannels.net include:spf.protection.outlook.com include:_spf.telligent.com include:spf-us.emailsignatures365.com include:_spf.createsend.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; fo=0:1:d:s
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
4 records- nordpass-domain-verification=0c53309a958f3bb33bbe5d58c21e72e77069222ce7dfa73476b2e02c8020e7d4
- atlassian-domain-verification=uCM4oQ7OysBGu2MImn3K1qVYwL7iDmxXfhimrcTTDMP/jjWzwXPQb1tyye9oW8Cm
- SPFv=spf1 a a:mail.gmb.com ip4:173.13.19.177 ip4:64.141.168.74 ip4:216.230.14.238 include:relay.mailchannels.net include:spf.protection.outlook.com include:_spf.telligent.com include:spf-us.emailsignatures365.com include:_spf.createsend.com ~all
- atlassian-sending-domain-verification=a1f0618f-5ab5-41a5-9dd7-a7204230e167
Full email verification for gmb.com
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