duschek.de

Valid Email Server
Domain Lookup › duschek.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
duschek.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 19:42:04 UTC · ↺ Refresh

MX Hostnames

  • sf.albguard4mail.de
  • obiwan.mehlrelay.de

MX Priorities

  • sf.albguard4mail.de: 10
  • obiwan.mehlrelay.de: 20

A / AAAA Records

  • 18.197.248.23 ↩ eu-staticip.multiscreensite.com

Mail Server IPs

  • 217.7.63.44 ↩ sf.albguard4mail.de
  • 217.7.63.5 ↩ obiwan.mehlrelay.de

SOA Record

Raw SOA ns2.ctl.de hostmaster.ctl.de 2026022502 10800 3600 604800 86400
Primary NS (mname)
ns2.ctl.de
Admin Email (rname)
hostmaster@ctl.de
Serial
2026022502
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

b.ns14.net
c.ns14.net
ns2.ctl.de
d.ns14.net

SPF Record

✓ Strict (-all)
v=spf1 mx a a:odysseus.ctl.de a:owa.duschek.de a:sf.albguard4mail.de -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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 mx a a:odysseus.ctl.de a:owa.duschek.de a:sf.albguard4mail.de -all
  • zone-ownership-verification-de4f834a80ae9f8c27c6303374d76a0535677ca6a61b96d679575e26a8e4c7ea
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