Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nubert.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 05:36:31 UTC · ↺ Refresh
MX Hostnames
- nubert-de.mail.protection.outlook.com
MX Priorities
- nubert-de.mail.protection.outlook.com: 10
A / AAAA Records
- 217.22.195.27 ↩ www.nubert.de
Mail Server IPs
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.nsentry.de hostmaster.nubert.de 2017013000 86400 7200 3600000 172800
Primary NS (mname)
ns3.nsentry.de
Admin Email (rname)
hostmaster@nubert.de
Serial
2017013000
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
172800s
Nameservers (NS)
ns4.nsentry.de
ns3.nsentry.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:inxserver.com include:spf1.x-mailer.de include:spf2.x-mailer.de include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
6 records- SPFv=spf1 mx include:inxserver.com include:spf1.x-mailer.de include:spf2.x-mailer.de include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
- _globalsign-domain-verification=MvhHHUvZgHIQ8AUa9SnOsFxUWjdwzvEHI8CM5DHMCG
- MS=ms38329896
- google-site-verification=FUDg_A9NeB5vjGdmF8K8giXl_ZaWm80M5hdn7QXWGHo
- _globalsign-domain-verification=HVLpJqixbqf1UKjJtI8Vuo2ACvxEHNHAv8qS-U57n5
- _globalsign-domain-verification=bogDl7eHpgdL8ABytMWhJxmWuzW7uiWcS4Oph3glvI
Full email verification for nubert.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits