graystarcorp.com

Valid Email Server
Domain Lookup › graystarcorp.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
graystarcorp.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 14:16:07 UTC · ↺ Refresh

MX Hostnames

  • gscs01.graystarcorp.com
  • graystarcorp-com.mail.protection.outlook.com

MX Priorities

  • gscs01.graystarcorp.com: 5
  • graystarcorp-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 209.191.201.82 ↩ w11.PaulBunyan.net
  • 2600:6400::100:0:0:0:1000

Mail Server IPs

  • 50.249.248.121 ↩ 50-249-248-121-static.hfc.comcastbusiness.net
  • 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
  • 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
  • 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA w2.paulbunyan.net pindigital2180.gmail.com 2026022001 3600 1800 1209600 86400
Primary NS (mname)
w2.paulbunyan.net
Admin Email (rname)
pindigital2180@gmail.com
Serial
2026022001
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

w2.paulbunyan.net
w3.paulbunyan.net
w6.paulbunyan.net

SPF Record

✓ Strict (-all)
v=spf1 +a +mx +ip4:209.191.198.242 +include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

2 records
  • SPFv=spf1 +a +mx +ip4:209.191.198.242 +include:spf.protection.outlook.com -all
  • MS=ms96357634
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