Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nationalgypsum.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 11:20:44 UTC · ↺ Refresh
MX Hostnames
- nationalgypsum-com.mail.protection.outlook.com
- nationalgypsum-com.mail.protection.outlook.com
MX Priorities
- nationalgypsum-com.mail.protection.outlook.com: 20
- nationalgypsum-com.mail.protection.outlook.com: 10
A / AAAA Records
- 100.25.231.30 ↩ ec2-100-25-231-30.compute-1.amazonaws.com
- 3.220.184.36 ↩ ec2-3-220-184-36.compute-1.amazonaws.com
Mail Server IPs
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
pdns92.ultradns.com communicationsteam.nationalgypsum.com 2015012565 10800 3600 1814400 86400
Primary NS (mname)
pdns92.ultradns.com
Admin Email (rname)
communicationsteam@nationalgypsum.com
Serial
2015012565
Refresh
10800s
Retry
3600s
Expire
1814400s
Minimum TTL
86400s
Nameservers (NS)
pdns92.ultradns.com
pdns92.ultradns.net
pdns92.ultradns.org
pdns92.ultradns.biz
SPF Record
✓ Strict (-all)
v=spf1 ip4:64.132.141.22/32 ip4:13.77.104.149/32 ip4:20.186.154.97/32 include:spf.protection.outlook.com include:7229635.spf06.hubspotemail.net include:spf-us.wfs.cloud include:_spf.ultipro.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1
;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- google-site-verification=lQivbyIuuRwIhmp5uisejua_HUF4kSotzROCQaRWoZI
- aIdsI7AyyYJlcfEvls7NlUyz4fDMVaDtoDolB9eX4jSTaoD5OF7E/DiRUIb46kFDH1m4yzbpZlMHKRy9FemgGQ==
- SPFv=spf1 ip4:64.132.141.22/32 ip4:13.77.104.149/32 ip4:20.186.154.97/32 include:spf.protection.outlook.com include:7229635.spf06.hubspotemail.net include:spf-us.wfs.cloud include:_spf.ultipro.com -all
- MS=ms43358321
- apple-domain-verification=Ul7qnkIMZ1k7ej4E
- brevo-code:0a43f71f5b38d91418e693f31cb1f600
- google-site-verification=24rQB7rrTy71o3AUafHfSNTO3Q8fXxWwYLjZXbwgM5
- google-site-verification=JcGLVnjIrVjYAoQw6C4gWT3lT_hqL5hFzilGF9m__P4
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