centrock.com

Valid Email Server
Domain Lookup › centrock.com

Domain Overview

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

Checked via [email protected] · 2026-03-23 08:59:24 UTC · ↺ Refresh

MX Hostnames

  • centrock-com.mail.protection.outlook.com
  • centrock-com.mail.eo.outlook.com

MX Priorities

  • centrock-com.mail.eo.outlook.com: 10
  • centrock-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 74.208.236.158

Mail Server IPs

  • 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
  • 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
  • 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
  • 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
  • 52.101.41.180
  • 52.101.41.6
  • 2a01:111:f403:c922::2
  • 2a01:111:f403:f802::1
  • 2a01:111:f403:c902::7
  • 2a01:111:f403:f910::

SOA Record

Raw SOA ns1086.ui-dns.com hostmaster.1and1.com 2017070603 28800 7200 604800 300
Primary NS (mname)
ns1086.ui-dns.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2017070603
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1086.ui-dns.org
ns1086.ui-dns.biz
ns1086.ui-dns.com
ns1086.ui-dns.de

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

✗ None detected

No 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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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