Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
centerfordiscovery.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 17:41:34 UTC · ↺ Refresh
MX Hostnames
- mailstream-central.mxrecord.mx
- mailstream-west.mxrecord.io
- mailstream-east.mxrecord.io
- centerfordiscovery-com.mail.protection.outlook.com
MX Priorities
- centerfordiscovery-com.mail.protection.outlook.com: 99
- mailstream-east.mxrecord.io: 10
- mailstream-west.mxrecord.io: 10
- mailstream-central.mxrecord.mx: 20
A / AAAA Records
- 141.193.213.20
- 141.193.213.21
Mail Server IPs
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 172.65.213.128 (no PTR)
- 172.65.220.210 (no PTR)
- 172.65.64.78
SOA Record
Raw SOA
ns95.worldnic.com namehost.worldnic.com 125073115 10800 3600 604800 3600
Primary NS (mname)
ns95.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125073115
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns95.worldnic.com
ns96.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:48261267.spf05.hubspotemail.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
3 records- knowbe4-site-verification=1fb37b8eb7f70f62310464340d6fda04
- SPFv=spf1 include:spf.protection.outlook.com include:48261267.spf05.hubspotemail.net -all
- apple-domain-verification=a8SePvd3PSO99c4Z
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