Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
insulation-holdings.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 17:44:00 UTC · ↺ Refresh
MX Hostnames
- insulationholdings-com02e.mail.protection.outlook.com
MX Priorities
- insulationholdings-com02e.mail.protection.outlook.com: 0
A / AAAA Records
- 199.16.173.242 (no PTR)
- 199.16.172.190 (no PTR)
Mail Server IPs
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns29.worldnic.com namehost.worldnic.com 125092913 10800 3600 604800 3600
Primary NS (mname)
ns29.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125092913
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns29.worldnic.com
ns30.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:173.240.76.41 ip4:173.240.76.34 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
5 records- xlPdqpUsYlN97MOvz/uscNIa42rGYdLCxzb1x2MeXfIjcU7w2d5h1f+/eTwJdhQuC6WGvHXY/5ZNy0JXf1lm3w==
- SPFv=spf1 a mx ip4:173.240.76.41 ip4:173.240.76.34 include:spf.protection.outlook.com -all
- cckljg2lppfpzf38qqnypnp5mnf46t6r
- MS=ms56938980
- google-site-verification=bj8TDYF82luVMdDPTnwoLhXi6KkLH0c8o4BpvdHVq6s
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