tristarhealth.com

Valid Email Server
Domain Lookup › tristarhealth.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tristarhealth.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 18:56:38 UTC · ↺ Refresh

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MX Hostnames

  • mxa-00039202.gslb.pphosted.com
  • mxb-00039202.gslb.pphosted.com

MX Priorities

  • mxb-00039202.gslb.pphosted.com: 10
  • mxa-00039202.gslb.pphosted.com: 10

A / AAAA Records

  • 13.107.246.40 (no PTR)
  • 13.107.213.40 (no PTR)

Mail Server IPs

  • 66.159.240.51 ↩ mx0a-00039202.pphosted.com
  • 66.159.238.24 ↩ mx0b-00039202.pphosted.com

SOA Record

Raw SOA ns1-01.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-01.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ns3-01.azure-dns.org
ns4-01.azure-dns.info
ns1-01.azure-dns.com
ns2-01.azure-dns.net

SPF Record

✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;fo=1;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google

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

All TXT Records

5 records
  • identrust_validate=epZfRN36vobGL0Om3X5fEgoCRof9sJZdPNFVoV9WjKlh
  • 6e376a9106e5f5b952fde22d69b36bd11cea046aac406da7ba5003aeaf9d0878
  • 3smFZfZFMxSJlwL/E6sSzdh76adeSSypcMwkOjbiP9BkusbHAga3JzOm4Fy7ikmc+WNeRZNWLsr1ZRUgccgSpg==
  • MS=ms64432558
  • SPFv=spf1 mx -all
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