Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sterlingindustrialllc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 05:07:24 UTC · ↺ Refresh
MX Hostnames
- sterlingindustrialllc-com.mail.protection.outlook.com
MX Priorities
- sterlingindustrialllc-com.mail.protection.outlook.com: 1
A / AAAA Records
- 66.228.55.144 ↩ puplookup.puplookup.com
Mail Server IPs
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
SOA Record
Raw SOA
ns11.worldnic.com namehost.worldnic.com 125021510 10800 3600 604800 3600
Primary NS (mname)
ns11.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125021510
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns12.worldnic.com
ns11.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:131.106.199.133 ip4:66.228.55.144 ip4:199.85.116.25 ip4:199.85.116.2 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:spfext.zapproved.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=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- MS=ms96059890
- 3/TPVDn5pCQNLaW4Fk84PusJFuAuDIh8M7vTbjAoZ2z8qQC7OHSR9x/Tdg3Q9g4oPEl+C9225AqpD2xHf40vAw==
- knowbe4-site-verification=2071ce5929f75969e8b2cc2a9fcb9803
- qjkfaugvd84ml669qmf1eonimq
- SPFv=spf1 ip4:131.106.199.133 ip4:66.228.55.144 ip4:199.85.116.25 ip4:199.85.116.2 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:spfext.zapproved.com -all
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