core-sensing.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
core-sensing.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 19:29:01 UTC · ↺ Refresh

MX Hostnames

  • coresensing-de01b.mail.protection.outlook.com

MX Priorities

  • coresensing-de01b.mail.protection.outlook.com: 20

A / AAAA Records

  • 3.67.183.72 ↩ ec2-3-67-183-72.eu-central-1.compute.amazonaws.com

Mail Server IPs

  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com

SOA Record

Raw SOA ns1028.ui-dns.biz hostmaster.1und1.com 2017060297 28800 7200 604800 600
Primary NS (mname)
ns1028.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060297
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1028.ui-dns.biz
ns1045.ui-dns.org
ns1121.ui-dns.de
ns1051.ui-dns.com

SPF Record

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

5 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • google-site-verification=NbwzcvCf3x-u2O87m_jqqpWmn4LgmYkbx5ZpjgjGjL0
  • anthropic-domain-verification-sf594r=Ckl9xPdpeBPEkDlcw4D4Wmw3K
  • google-site-verification=sbH94DtV8ScgFGOKhZf1-7rRMY5-NBGJnT3P1FOiYDM
  • google-site-verification=vH-isqLBqro1vfHNm5kI4bfYwCsUwo4GyybXD0qSc98
Full email verification for core-sensing.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits