Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gymmar.hamburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 12:19:31 UTC · ↺ Refresh
MX Hostnames
- offline.iserv.eu
- smtp.mail.schuldock.de
MX Priorities
- offline.iserv.eu: 50
- smtp.mail.schuldock.de: 10
A / AAAA Records
- 147.78.89.45 ↩ vm01.fhh-bsb.mcs.cloud
Mail Server IPs
- 159.69.47.32 ↩ static.32.47.69.159.clients.your-server.de
- 2a01:4f8:c2c:4863::1 (no PTR)
- 162.55.152.236 ↩ smtp.mail.schuldock.de
- 2a01:4f8:1c1d:267::1 ↩ smtp.mail.schuldock.de
SOA Record
Raw SOA
ns1.iserv.eu hostmaster.iserv.eu 337513193 86400 10800 3600000 60
Primary NS (mname)
ns1.iserv.eu
Admin Email (rname)
hostmaster@iserv.eu
Serial
337513193
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
60s
Nameservers (NS)
ns4.iserv.eu
ns1.iserv.eu
ns3.iserv.eu
ns2.iserv.eu
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:relay1.iserv.eu a:relay2.iserv.eu a:relay3.iserv.eu a:relaybs.iserv.eu include:dataport.de ?all
📊 DNS lookups: 7/10
? Neutral (?all) — no 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 a mx a:relay1.iserv.eu a:relay2.iserv.eu a:relay3.iserv.eu a:relaybs.iserv.eu include:dataport.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 gymmar.hamburg.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits