krestonpr.com

Valid Email Server
Domain Lookup › krestonpr.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
krestonpr.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 01:49:36 UTC · ↺ Refresh

MX Hostnames

  • krestonpr-com.mail.protection.outlook.com

MX Priorities

  • krestonpr-com.mail.protection.outlook.com: 5

A / AAAA Records

  • 162.159.134.42 (no PTR)

Mail Server IPs

  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
  • 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f903:: (no PTR)
  • 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com

SOA Record

Raw SOA ns2.no-ip.com hostmaster.no-ip.com 2023022605 10800 1800 604800 1800
Primary NS (mname)
ns2.no-ip.com
Admin Email (rname)
hostmaster@no-ip.com
Serial
2023022605
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ns1.no-ip.com
ns2.no-ip.com
ns3.no-ip.com
ns4.no-ip.com
ns5.no-ip.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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
  • ca3-97f7d65f9a9a4be99c71af6495bfc7b8
  • 76dlcic86ch039t63qvnh41sig
  • SPFv=spf1 include:spf.protection.outlook.com -all
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