Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
steinhaus-gmbh.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 16:41:26 UTC · ↺ Refresh
MX Hostnames
- steinhausgmbh-de02c.mail.protection.outlook.com
MX Priorities
- steinhausgmbh-de02c.mail.protection.outlook.com: 0
A / AAAA Records
- 185.166.20.207 ↩ r12530.agenturserver.it
Mail Server IPs
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.namesecure.de hostmaster.namesecure.de 2022021010 14400 3600 604800 28800
Primary NS (mname)
ns1.namesecure.de
Admin Email (rname)
hostmaster@namesecure.de
Serial
2022021010
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
ns2.namesecure.de
ns1.namesecure.de
SPF Record
✓ Strict (-all)
v=spf1 a include:spf-de.emailsignatures365.com include:agenturserver.de include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
5 records- SPFv=spf1 a include:spf-de.emailsignatures365.com include:agenturserver.de include:spf.protection.outlook.com -all
- MS=ms44624879
- linkedin-site-verification=e1116678-ce4a-47a4-9cf2-e93b490261ad
- google-site-verification=-dhIFC8vnn7KX3LlwdvKaXSWragFXMxIvaZv1c8PeY8
- MS=ms79990345
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 steinhaus-gmbh.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits