buero-heiss.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
buero-heiss.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 22:37:29 UTC · ↺ Refresh

MX Hostnames

  • bueroheiss-de01c.mail.protection.outlook.com

MX Priorities

  • bueroheiss-de01c.mail.protection.outlook.com: 0

A / AAAA Records

  • 83.169.17.208 ↩ plesk.pearson-friends.de
  • ::ffff:53a9:11d0 ↩ plesk.pearson-friends.de

Mail Server IPs

  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA ns1109.ui-dns.com hostmaster.1und1.com 2017060118 28800 7200 604800 600
Primary NS (mname)
ns1109.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060118
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1025.ui-dns.biz
ns1109.ui-dns.com
ns1068.ui-dns.org
ns1028.ui-dns.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf-eu.ionos.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate 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-eu.ionos.com include:spf.protection.outlook.com ~all
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