Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
marefn.fu-berlin.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 19:21:54 UTC · ↺ Refresh
MX Hostnames
- mail.fu-berlin.de
MX Priorities
- mail.fu-berlin.de: 10
A / AAAA Records
- 160.45.170.14 ↩ cmshosting2.cedis.fu-berlin.de
Mail Server IPs
- 130.133.4.67 ↩ relay1.zedat.fu-berlin.de
SOA Record
Raw SOA
ns1.fu-berlin.de hostmaster.zedat.fu-berlin.de 2025091101 10800 3600 2419200 3600
Primary NS (mname)
ns1.fu-berlin.de
Admin Email (rname)
hostmaster@zedat.fu-berlin.de
Serial
2025091101
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns2.fu-berlin.de
ns3.fu-berlin.de
ns1.fu-berlin.de
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.fu-berlin.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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.fu-berlin.de -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 marefn.fu-berlin.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits