sterncardio.com

Valid Email Server
Domain Lookup › sterncardio.com

Domain Overview

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

Checked via [email protected] · 2026-03-26 06:08:34 UTC · ↺ Refresh

MX Hostnames

  • mx2-us1.ppe-hosted.com
  • mx1-us1.ppe-hosted.com

MX Priorities

  • mx1-us1.ppe-hosted.com: 10
  • mx2-us1.ppe-hosted.com: 10

A / AAAA Records

  • 151.101.65.195 (no PTR)
  • 151.101.1.195 (no PTR)

Mail Server IPs

  • 148.163.129.50 ↩ mx1-us1.ppe-hosted.com
  • 67.231.154.162 ↩ mx1-us1.ppe-hosted.com
  • 67.231.154.163 ↩ mx2-us1.ppe-hosted.com
  • 148.163.129.51 ↩ mx2-us1.ppe-hosted.com

SOA Record

Raw SOA ns41.worldnic.com namehost.worldnic.com 126010715 10800 3600 604800 3600
Primary NS (mname)
ns41.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126010715
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns42.worldnic.com
ns41.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:205.235.86.50 ip4:205.235.86.51 ip4:50.216.149.170 ip4:12.3.137.194 ip4:12.3.137.196 ip4:12.3.137.195 a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com include:spf.zohomail360.com include:spf-us.emailsignatures365.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

8 records
  • apple-domain-verification=lNOl8cCL2BzgnF8s
  • jamf-site-verification=4-ctHEqLuM_S2ZSxKnCpPA
  • MS=ms35953558
  • google-site-verification=oF3akTf_cLnzuUp0AjFyUlJyAAZrhihLod1_hU-QzUc
  • Q+7I14KKZDoz/c5TUQnjOuBLtyKv7barr8xkNIR/PfeYGdw8u/1sYks/RU6mh0FD+Px4ztIcT0uSkirXdgTnog==
  • SPFv=spf1 ip4:205.235.86.50 ip4:205.235.86.51 ip4:50.216.149.170 ip4:12.3.137.194 ip4:12.3.137.196 ip4:12.3.137.195 a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com include:spf.zohomail360.com include:spf-us.emailsignatures365.com -all
  • ppe-b75f26892c341f364ea7b84959f96b52039d4c94
  • ciscocidomainverification=1dfe757f4c3afbfd3a79b4633c1addd0cc27b933a2053ea33bca5affd00b4f79
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