Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
challengerinc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 16:27:56 UTC · ↺ Refresh
MX Hostnames
- challengerinc-com.mail.protection.outlook.com
MX Priorities
- challengerinc-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10 (no PTR)
Mail Server IPs
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
SOA Record
Raw SOA
ns67.domaincontrol.com dns.jomax.net 2026012501 28800 7200 604800 600
Primary NS (mname)
ns67.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026012501
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns68.domaincontrol.com
ns67.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:mailsenders.netsuite.com include:mail.thoughtindustries.com include:_spf.psm.knowbe4.com include:_spf.salesforce.com include:_spf.qualtrics.com include:mail.zendesk.com include:4808822.spf05.hubspotemail.net ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=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
9 records- slack-domain-verification=1ATaH5nBrAmDFyhmhg93ORBrLSJNyqYE7gKQ4Edl
- ms-domain-verification=0be13f4e-0729-42ef-bb16-5ebb62f30759
- SPFv=spf1 include:spf.protection.outlook.com include:mailsenders.netsuite.com include:mail.thoughtindustries.com include:_spf.psm.knowbe4.com include:_spf.salesforce.com include:_spf.qualtrics.com include:mail.zendesk.com include:4808822.spf05.hubspotemail.net ~all
- MS=ms48023185
- rippling-domain-verification=98cbaa69e672c4ab
- google-site-verification=z1l37KAIcs3VEIdnU2Umewf-THU7r-rykfYA_CdCBiM
- docusign=cc1b9b6b-57b1-4762-a901-6f4211ae03f8
- apple-domain-verification=bpnbtEWEe9Wz6wBM
- zapier-domain-verification-challenge=33bb7e54-dd8c-40d2-add8-f153e343866d
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