Domain Overview
DNS: ✓ 3d ago
Checker: ✓ 3d ago
osnebau.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-18 03:38:18 UTC · ↺ Refresh
MX Hostnames
- osnebau-de.mail.protection.outlook.com
MX Priorities
- osnebau-de.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.79 ↩ 217-160-0-79.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
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1086.ui-dns.org hostmaster.1und1.com 2017060116 28800 7200 604800 600
Primary NS (mname)
ns1086.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060116
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1029.ui-dns.biz
ns1079.ui-dns.de
ns1088.ui-dns.com
ns1086.ui-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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
3 records- google-site-verification=u40u8TqV7xzZi4L9_Z4_ZHy1sy8THxAp8HO4UyiJDc4
- SPFv=spf1 include:spf.protection.outlook.com ~all
- v=verifydomain MS=8161017
Full email verification for osnebau.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits