hcb-institute.de

Valid Email Server
Domain Lookup › hcb-institute.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
hcb-institute.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 11:37:54 UTC · ↺ Refresh

MX Hostnames

  • hcbinstitute-de0i.mail.protection.outlook.com

MX Priorities

  • hcbinstitute-de0i.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.49 ↩ 217-160-0-49.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com

SOA Record

Raw SOA ns1037.ui-dns.com hostmaster.1und1.de 2017041014 28800 7200 604800 300
Primary NS (mname)
ns1037.ui-dns.com
Admin Email (rname)
hostmaster@1und1.de
Serial
2017041014
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1037.ui-dns.de
ns1037.ui-dns.org
ns1037.ui-dns.com
ns1037.ui-dns.biz

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
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

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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