Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
milehighcoworking.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 06:47:17 UTC · ↺ Refresh
MX Hostnames
- milehighcoworking-com.mail.protection.outlook.com
MX Priorities
- milehighcoworking-com.mail.protection.outlook.com: 0
A / AAAA Records
- 151.101.2.159 (no PTR)
Mail Server IPs
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns17.domaincontrol.com dns.jomax.net 2025112300 28800 7200 604800 600
Primary NS (mname)
ns17.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025112300
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns18.domaincontrol.com
ns17.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:secureserver.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- NETORGFT19316657.onmicrosoft.com
- SPFv=spf1 include:secureserver.net -all
- google-site-verification=syZosBVTzDQ-91RB2Rzb2UAR148J6Vo5TA6wqqyorQo
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