Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
estridge.net
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 23:27:07 UTC · ↺ Refresh
MX Hostnames
- estridge-net.mail.protection.outlook.com
MX Priorities
- estridge-net.mail.protection.outlook.com: 0
A / AAAA Records
- 208.91.197.27 (no PTR)
Mail Server IPs
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns79.worldnic.com namehost.worldnic.com 124032015 10800 3600 604800 3600
Primary NS (mname)
ns79.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
124032015
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns79.worldnic.com
ns80.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.us.exclaimer.net include:lassocrm.com include:_spf.psm.knowbe4.com include:registrantmail.com include:mailgun.org -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;pct=100;adkim=s;aspf=s;ruf=mailto:[email protected];rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
1 record- SPFv=spf1 include:spf.protection.outlook.com include:spf.us.exclaimer.net include:lassocrm.com include:_spf.psm.knowbe4.com include:registrantmail.com include:mailgun.org -all
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