tzdan.de

Valid Email Server
Domain Lookup › tzdan.de

Domain Overview

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

Checked via [email protected] · 2026-03-30 18:24:30 UTC · ↺ Refresh

MX Hostnames

  • mail1101.tzdan.de
  • mail.tzdan.de

MX Priorities

  • mail.tzdan.de: 10
  • mail1101.tzdan.de: 20

A / AAAA Records

  • 188.40.153.185 ↩ vserver1101.onit4u.de

Mail Server IPs

  • 188.40.153.185 ↩ vserver1101.onit4u.de

SOA Record

Raw SOA ns1.host4you.de info.onit-gmbh.de 2020013000 43200 7200 1209600 3600
Primary NS (mname)
ns1.host4you.de
Admin Email (rname)
info@onit-gmbh.de
Serial
2020013000
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns3.host4you.de
ns2.host4you.de
ns1.host4you.de
ns4.host4you.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx ip4:188.40.153.184/29 ip6:2a01:4f8:221:1443::/64 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate 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

1 record
  • SPFv=spf1 a mx ip4:188.40.153.184/29 ip6:2a01:4f8:221:1443::/64 ~all
Full email verification for tzdan.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits