Domain Overview
DNS: ✓ 4d ago
Checker: ✓ 4d ago
tfcornerstone.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-08 16:45:07 UTC · ↺ Refresh
MX Hostnames
- tfcornerstone.com.1.0001.arsmtp.com
- tfcornerstone.com.2.0001.arsmtp.com
MX Priorities
- tfcornerstone.com.1.0001.arsmtp.com: 20
- tfcornerstone.com.2.0001.arsmtp.com: 30
A / AAAA Records
- 52.85.31.8 ↩ server-52-85-31-8.jfk50.r.cloudfront.net
- 52.85.31.11 ↩ server-52-85-31-11.jfk50.r.cloudfront.net
- 52.85.31.127 ↩ server-52-85-31-127.jfk50.r.cloudfront.net
- 52.85.31.103 ↩ server-52-85-31-103.jfk50.r.cloudfront.net
Mail Server IPs
- 8.31.233.66 ↩ server236.appriver.com
- 8.19.118.173 ↩ server237.appriver.com
SOA Record
Raw SOA
ns-798.awsdns-35.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-798.awsdns-35.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1632.awsdns-12.co.uk
ns-329.awsdns-41.com
ns-798.awsdns-35.net
ns-1060.awsdns-04.org
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:69.74.50.59 include:spf.mandrillapp.com include:_phishspf.knowbe4.com include:spf.nexuspayables.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; ri=84600;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✗ None detectedNo 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
6 records- MS=ms37966312
- ZOOM_verify_B0y1wUU7Tra17mA52NCkiA
- include:trustpilotservice.com
- SPFv=spf1 mx ip4:69.74.50.59 include:spf.mandrillapp.com include:_phishspf.knowbe4.com include:spf.nexuspayables.com include:spf.protection.outlook.com -all
- yxJjGcNOZBIrCUGAXsgdQIgCoOBbl7/sTmZ5gJTOYxs7P6zBsUt6WqGxIWFC0ZqELBvbMjX1+OXGvcajRUkwwg==
- 9b5gqssn06rgms4p8u7jd12uc2
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