Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
cosbyhc.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-18 19:38:26 UTC · ↺ Refresh
MX Hostnames
- mx1-usg2.ppe-hosted.com
- mx2-usg2.ppe-hosted.com
- mx3-usg2.ppe-hosted.com
MX Priorities
- mx2-usg2.ppe-hosted.com: 0
- mx3-usg2.ppe-hosted.com: 0
- mx1-usg2.ppe-hosted.com: 0
A / AAAA Records
- 141.193.213.11 (no PTR)
- 141.193.213.10 (no PTR)
Mail Server IPs
- 23.21.114.81 ↩ mx2-usg2.ppe-hosted.com
- 34.231.165.252 ↩ mx3-usg2.ppe-hosted.com
- 98.85.123.215 ↩ mx1-usg2.ppe-hosted.com
SOA Record
Raw SOA
ns31.domaincontrol.com dns.jomax.net 2026032602 28800 7200 604800 600
Primary NS (mname)
ns31.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026032602
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns31.domaincontrol.com
ns32.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -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
4 records- NETORGFT7734136.onmicrosoft.com
- google-site-verification=mDm8P9ms9n0mUPuFM318kjHuWt9jksoTmAcivo8vO3A
- SPFv=spf1 include:spf.protection.outlook.com -all
- google-site-verification=lECPDeyMX3Tvcqx0qd8RclSkGEZ_Fg0vq5m4ygUs6Zw
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