corebookservice.com

Valid Email Server
Domain Lookup › corebookservice.com

Domain Overview

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

Checked via [email protected] · 2026-03-19 12:03:10 UTC · ↺ Refresh

MX Hostnames

  • corebookservice-com.mail.protection.outlook.com

MX Priorities

  • corebookservice-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 74.208.236.108 ↩ 74-208-236-108.elastic-ssl.ui-r.com
  • 2607:f1c0:100f:f000::200 ↩ 2607-f1c0-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com

SOA Record

Raw SOA ns1045.ui-dns.com hostmaster.1und1.com 2017060139 28800 7200 604800 600
Primary NS (mname)
ns1045.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060139
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1045.ui-dns.biz
ns1045.ui-dns.org
ns1045.ui-dns.com
ns1045.ui-dns.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx include:_spf.mlsend.com include:_spf-us.ionos.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

4 records
  • zone-ownership-verification-779137e59834755a31ae153d14b37bbae31c67b8f052a619abdb3876ff5518dc
  • mailerlite-domain-verification=83c5b50d9b9799b22566c85071020965e60c9c0a
  • SPFv=spf1 a mx include:_spf.mlsend.com include:_spf-us.ionos.com include:spf.protection.outlook.com ~all
  • google-site-verification=pp3KlsFeye-YZK9H4us8IfJ1VtGk0II9P-iJcWUzW0M
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