joinhcso.com

No Valid Email Server
Domain Lookup › joinhcso.com

Domain Overview

DNS: ✓ 2d ago Checker: ✓ 2d ago
joinhcso.com
No
None
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-19 11:24:17 UTC · ↺ Refresh

MX Hostnames

No MX records found.

MX Priorities

No priority data.

A / AAAA Records

  • 198.135.199.4 ↩ hcso.us

Mail Server IPs

No IPs resolved.

SOA Record

Raw SOA ns1.hcso.tampa.fl.us hostmaster.hcso.tampa.fl.us 22 10800 3600 2592000 900
Primary NS (mname)
ns1.hcso.tampa.fl.us
Admin Email (rname)
hostmaster@hcso.tampa.fl.us
Serial
22
Refresh
10800s
Retry
3600s
Expire
2592000s
Minimum TTL
900s

Nameservers (NS)

ns2.hcso.tampa.fl.us
resolver1.level3.net
ns1.hcso.tampa.fl.us
resolver2.level3.net

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • c9gdykb5ywztw63735fmbm6m60nz56fd
  • _m6cqhftth5rd6b1qlcz6p2hrvl7lyhj
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