Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nbs-hochschule.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 12:57:08 UTC · ↺ Refresh
MX Hostnames
- nbshochschule-de0i.mail.protection.outlook.com
MX Priorities
- nbshochschule-de0i.mail.protection.outlook.com: 10
A / AAAA Records
- 81.169.145.64 ↩ w00.rzone.de
- 2a01:238:20a:202:1064:: ↩ w00.rzone.de
Mail Server IPs
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
SOA Record
Raw SOA
shades08.rzone.de hostmaster.strato-rz.de 2020051412 86400 7200 604800 300
Primary NS (mname)
shades08.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020051412
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades08.rzone.de
docks20.rzone.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:nbs-hamburg.de a:campus.nbs.de a:elearning.nbs.de ip4:213.238.32.6 ip4:194.163.177.115 ip4:93.240.90.80 ip4:87.138.163.32 ip4:178.13.74.43 ip4:79.196.56.42 include:spf.protection.outlook.com include:spf.sendinblue.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
2 records- SPFv=spf1 a mx a:nbs-hamburg.de a:campus.nbs.de a:elearning.nbs.de ip4:213.238.32.6 ip4:194.163.177.115 ip4:93.240.90.80 ip4:87.138.163.32 ip4:178.13.74.43 ip4:79.196.56.42 include:spf.protection.outlook.com include:spf.sendinblue.com ~all
- XtOfG0CLhuREeDyg9cpaB0tbv25QFRcBBNrSTUpK77G2gFtrnpTYECpERRLhRdls9p/iajVX0rjJAE5yahyV5w==
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