Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
notebookservice24.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 22:10:07 UTC · ↺ Refresh
MX Hostnames
- notebookservice24-de.mail.protection.outlook.com
MX Priorities
- notebookservice24-de.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.155 ↩ 217-160-0-155.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::239 ↩ 2001-08d8-100f-f000-0000-0000-0000-0239.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.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:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1022.ui-dns.org hostmaster.1und1.com 2017060117 28800 7200 604800 600
Primary NS (mname)
ns1022.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060117
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1104.ui-dns.com
ns1099.ui-dns.biz
ns1022.ui-dns.org
ns1024.ui-dns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.perfora.net include:_spf.kundenserver.de include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ 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
1 record- SPFv=spf1 include:_spf.perfora.net include:_spf.kundenserver.de include:spf.protection.outlook.com ~all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for notebookservice24.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits