crdh.de

Valid Email Server
Domain Lookup › crdh.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
crdh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-26 12:38:43 UTC · ↺ Refresh

MX Hostnames

  • mail.vc-net-systems.de

MX Priorities

  • mail.vc-net-systems.de: 10

A / AAAA Records

  • 81.169.145.92 ↩ w8c.rzone.de
  • 2a01:238:20a:202:1092:: ↩ w8c.rzone.de

Mail Server IPs

  • 83.246.83.179 ↩ mail.vc-net-systems.de

SOA Record

Raw SOA docks10.rzone.de hostmaster.strato-rz.de 2020050715 86400 7200 604800 300
Primary NS (mname)
docks10.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050715
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

docks10.rzone.de
shades09.rzone.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx ip4:83.246.75.201 ip4:83.246.83.179 ip4:193.201.52.2 include:_spf-eu.ionos.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

1 record
  • SPFv=spf1 a mx ip4:83.246.75.201 ip4:83.246.83.179 ip4:193.201.52.2 include:_spf-eu.ionos.com ~all
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