blockchain-holding.com

Valid Email Server
Domain Lookup › blockchain-holding.com

Domain Overview

DNS: ✓ 1mo ago Checker: ✓ 1mo ago
blockchain-holding.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-06 13:22:11 UTC · ↺ Refresh

MX Hostnames

  • blockchainholding-com02e.mail.protection.outlook.com

MX Priorities

  • blockchainholding-com02e.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.189 ↩ 217-160-0-189.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::216 ↩ 2001-08d8-100f-f000-0000-0000-0000-0216.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com

SOA Record

Raw SOA ns1078.ui-dns.com hostmaster.kundenserver.de 2017010519 28800 7200 604800 300
Primary NS (mname)
ns1078.ui-dns.com
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2017010519
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1078.ui-dns.org
ns1078.ui-dns.biz
ns1078.ui-dns.de
ns1078.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

✗ 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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