crer.org.uk

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
crer.org.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-19 18:55:42 UTC · ↺ Refresh

MX Hostnames

  • crer-org-uk.mail.protection.outlook.com

MX Priorities

  • crer-org-uk.mail.protection.outlook.com: 0

A / AAAA Records

  • 198.49.23.145 (no PTR)
  • 198.185.159.144 (no PTR)
  • 198.185.159.145
  • 198.49.23.144

Mail Server IPs

  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns25.domaincontrol.com dns.jomax.net 2022071904 28800 7200 604800 3600
Primary NS (mname)
ns25.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2022071904
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns25.domaincontrol.com
ns26.domaincontrol.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

✗ 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

5 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • google-site-verification=CAh6Da-qGJLctQviQiCBkTFyWIhqZXzfPEBdiLERO90
  • google-site-verification=CB6_Dru9FPhwhJEsIuCrxjn6Gz877KshpsTow443q8E
  • google-site-verification=WNfaBc_fUuXJ2PmVSO1KsC5LpjPNlqtgc6v1pY0zi-I
  • MS=ms83381267
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