Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
toeic-duesseldorf.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 17:58:27 UTC · ↺ Refresh
MX Hostnames
- heine.iik-duesseldorf.de
- mx02.openit.de
MX Priorities
- mx02.openit.de: 20
- heine.iik-duesseldorf.de: 5
A / AAAA Records
- 217.69.67.139 (no PTR)
Mail Server IPs
- 213.95.203.108 ↩ mx02.openit.de
- 2001:780:129:1::4 ↩ mx02.openit.de
- 217.69.67.130 ↩ heine.iik-duesseldorf.de
SOA Record
Raw SOA
ns1.plusserver.com hostmaster.plusserver.com 2021051101 1800 900 604800 900
Primary NS (mname)
ns1.plusserver.com
Admin Email (rname)
hostmaster@plusserver.com
Serial
2021051101
Refresh
1800s
Retry
900s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
ns3.plusserver.com
ns2.plusserver.com
ns1.plusserver.com
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
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
No TXT records found.
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