Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hs-ib.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 05:34:44 UTC · ↺ Refresh
MX Hostnames
- mx1.onoffice.de
- mx3.onoffice.de
- mx2.onoffice.de
MX Priorities
- mx3.onoffice.de: 20
- mx1.onoffice.de: 10
- mx2.onoffice.de: 10
A / AAAA Records
- 81.27.231.55 ↩ conmarit.hpress.de
Mail Server IPs
- 95.130.253.56 ↩ mx3.onoffice.de
- 95.130.253.60 ↩ mx1.onoffice.de
- 95.130.253.71 ↩ mx2.onoffice.de
SOA Record
Raw SOA
ns1029.ui-dns.de hostmaster.1und1.com 2017060122 28800 7200 604800 600
Primary NS (mname)
ns1029.ui-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060122
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1029.ui-dns.de
ns1057.ui-dns.com
ns1122.ui-dns.org
ns1105.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 include:onoffice.de ~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
2 records- SPFv=spf1 include:onoffice.de ~all
- google-site-verification=VE7G4F67cX44kFhccyO3a9zYZwjTmkhutemSsi0Rw50
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 hs-ib.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits