cornerstonedds.com

Valid Email Server
Domain Lookup › cornerstonedds.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cornerstonedds.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 13:22:01 UTC · ↺ Refresh

MX Hostnames

  • smtp3-west01.prosites.com
  • smtp1-west01.prosites.com

MX Priorities

  • smtp1-west01.prosites.com: 10
  • smtp3-west01.prosites.com: 30

A / AAAA Records

  • 50.112.71.45 ↩ ec2-50-112-71-45.us-west-2.compute.amazonaws.com

Mail Server IPs

  • 52.24.20.206 ↩ smtp1-west01.prosites.com
  • 54.71.215.144 ↩ smtp3-west01.prosites.com

SOA Record

Raw SOA ns1.prosites.com hostmaster.prosites.com 1774041584 3600 3600 3600000 86400
Primary NS (mname)
ns1.prosites.com
Admin Email (rname)
hostmaster@prosites.com
Serial
1774041584
Refresh
3600s
Retry
3600s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns2.prosites.com
ns3.prosites.com
ns1.prosites.com

SPF Record

✓ Strict (-all)
v=spf1 mx include:customer.prosites.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

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

1 record
  • SPFv=spf1 mx include:customer.prosites.com -all
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