Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
instrulink.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 12:48:00 UTC · ↺ Refresh
MX Hostnames
- instrulink-com.mail.protection.outlook.com
MX Priorities
- instrulink-com.mail.protection.outlook.com: 0
A / AAAA Records
- 208.109.41.234 ↩ 234.41.109.208.host.secureserver.net
Mail Server IPs
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns35.worldnic.com namehost.worldnic.com 124041921 10800 3600 604800 3600
Primary NS (mname)
ns35.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
124041921
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns36.worldnic.com
ns35.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
4 records- rtjio6sr1ovdd124rhh4vcjupg
- MS=ms89903066
- SPFv=spf1 include:spf.protection.outlook.com -all
- hk576100l3gdhv7pdmda81o5sn
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