Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
challengergray.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 18:55:38 UTC · ↺ Refresh
MX Hostnames
- challengergray-com.mail.protection.outlook.com
MX Priorities
- challengergray-com.mail.protection.outlook.com: 0
A / AAAA Records
- 23.185.0.4 (no PTR)
Mail Server IPs
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
SOA Record
Raw SOA
pdns13.domaincontrol.com dns.jomax.net 2026031800 28800 7200 604800 600
Primary NS (mname)
pdns13.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031800
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
pdns13.domaincontrol.com
pdns14.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:mailgun.org include:relay.mailchannels.net include:spf.constantcontact.com include:_spf.mlsend.com include:43603416.spf05.hubspotemail.net ip4:20.80.41.209 ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
2 records- MS=7C43245A0E9FFC92FF55C5455D9CA8129D2EB0E0
- SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net include:mailgun.org include:relay.mailchannels.net include:spf.constantcontact.com include:_spf.mlsend.com include:43603416.spf05.hubspotemail.net ip4:20.80.41.209 ~all
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