Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
usosm.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 04:04:07 UTC · ↺ Refresh
MX Hostnames
- mx-cluster-usa04.hornetsecurity.com
- mx-cluster-usa03.hornetsecurity.com
- mx-cluster-usa02.hornetsecurity.com
- mx-cluster-usa01.hornetsecurity.com
MX Priorities
- mx-cluster-usa04.hornetsecurity.com: 30
- mx-cluster-usa01.hornetsecurity.com: 0
- mx-cluster-usa02.hornetsecurity.com: 10
- mx-cluster-usa03.hornetsecurity.com: 20
A / AAAA Records
- 23.185.0.2 (no PTR)
- 2620:12a:8000::2 (no PTR)
- 2620:12a:8001::2 (no PTR)
Mail Server IPs
- 173.45.18.100 ↩ hsmx01-hz5.hornetsecurity.com
SOA Record
Raw SOA
ns51.domaincontrol.com dns.jomax.net 2026020502 28800 7200 604800 600
Primary NS (mname)
ns51.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026020502
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns51.domaincontrol.com
ns52.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.hornetsecurity.com include:spf.constantcontact.com include:spf.protection.outlook.com include:mail.zendesk.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 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
4 records- 0ed1fe018af9c551bdec7f4396b2a81189d781d56b
- google-site-verification=MWJ144LqwUzFU-mZdinD9XXz1lyWZwJwgs_qiI3Tmq0
- 363rtqgtutdlf240j5h7l4t81q
- SPFv=spf1 include:spf.hornetsecurity.com include:spf.constantcontact.com include:spf.protection.outlook.com include:mail.zendesk.com -all
Full email verification for usosm.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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