smart-unit.de

Valid Email Server
Domain Lookup › smart-unit.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
smart-unit.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 18:42:13 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 87.106.43.30 (no PTR)

Mail Server IPs

  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA ns1072.ui-dns.de hostmaster.1und1.com 2017060119 28800 7200 604800 600
Primary NS (mname)
ns1072.ui-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060119
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1052.ui-dns.org
ns1046.ui-dns.biz
ns1022.ui-dns.com
ns1072.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

5 records
  • v=verifydomain MS=7590671
  • google-site-verification=wzqV0IVY8_KRkaaMB9kkt1pMVIWMzVpH_MjA6OYX9iw
  • openai-domain-verification=dv-44nBxF7DyNk7gWeRauxKCfS5
  • google-site-verification=N9Q-fQhUzWkJdB3vi20Lr4gD7j12petiWW3Z9DbzSu8
  • SPFv=spf1 include:_spf-eu.ionos.com include:spf.protection.outlook.com ~all
Full email verification for smart-unit.de

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

SPF / DKIM / DMARC Get 1,000 Free Credits