Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
insperex.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 23:15:54 UTC · ↺ Refresh
MX Hostnames
- insperex-com.mail.protection.outlook.com
MX Priorities
- insperex-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.18.6.147 (no PTR)
- 104.18.7.147 (no PTR)
- 2606:4700::6812:693
- 2606:4700::6812:793
Mail Server IPs
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
mariah.ns.cloudflare.com dns.cloudflare.com 2399343602 10000 2400 604800 1800
Primary NS (mname)
mariah.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399343602
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
mariah.ns.cloudflare.com
syeef.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:149.72.218.162 ip4:20.98.174.226 ip4:13.111.127.164 ip4:13.111.18.10 ip4:52.25.139.218 ip4:52.24.201.102 include:aspmx.pardot.com include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:cust-spf.exacttarget.com include:_spf.salesforce.com include:_spf.psm.knowbe4.com include:spf.relay.thomsonreuters.com include:_phishspf.knowbe4.com -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
8 records- apple-domain-verification=xUDbS8czk6tqNUTd
- atlassian-domain-verification=4N/VghHxNnlFV64hCFukaXZQLcRSAoikOZpvwwyq8R08tEtZdcqBXaw0sVpNuVKV
- bw=6OolIn+O4nSrYS/LH4CEOzOFlgtXGI5Ft+tTlLp8FEdm
- google-site-verification=knb5wPIPAHp6EF12jZeVsnYe8NQXamTJwLxk3S8HI0c
- google-site-verification=mjszd2D2iqIGgqQaiPofPjs3I1cJTa4FzRcKtVkyMbQ
- mongodb-site-verification=GugeNqeHNR1QMc1b4sdoruMPn6YRhEV5
- SPFv=spf1 ip4:149.72.218.162 ip4:20.98.174.226 ip4:13.111.127.164 ip4:13.111.18.10 ip4:52.25.139.218 ip4:52.24.201.102 include:aspmx.pardot.com include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:cust-spf.exacttarget.com include:_spf.salesforce.com include:_spf.psm.knowbe4.com include:spf.relay.thomsonreuters.com include:_phishspf.knowbe4.com -all
- anthropic-domain-verification-7d8y4q=m57ZbCRch7URQ8pTSavZJocmS
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