deltakonzept.de

Valid Email Server
Domain Lookup › deltakonzept.de
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
deltakonzept.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-03 11:00:51 UTC · ↺ Refresh

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MX Hostnames

  • mailin.deltakonzept.de

MX Priorities

  • mailin.deltakonzept.de: 10

A / AAAA Records

  • 188.40.156.77 ↩ webfront1.dkcdn.de
  • 2a01:4f8:231:3615::bc28:9c4d (no PTR)

Mail Server IPs

  • 188.40.156.66 ↩ mailin.deltakonzept.de
  • 2a01:4f8:231:3615:ffff::3 ↩ chapai.cloud.deltakonzept.de

SOA Record

Raw SOA ns1.deltakonzept.de administrator.deltakonzept.de 2026042003 43200 7200 1209600 600
Primary NS (mname)
ns1.deltakonzept.de
Admin Email (rname)
administrator@deltakonzept.de
Serial
2026042003
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
600s

Nameservers (NS)

ns3.deltakonzept.de
ns4.deltakonzept.de
ns1.deltakonzept.de
ns2.deltakonzept.de

SPF Record

✓ Strict (-all)
v=spf1 a mx include:_spf.deltakonzept.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

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

3 records
  • SPFv=spf1 a mx include:_spf.deltakonzept.de -all
  • google-site-verification=VLU1r1M8IV3imPB0ruBU2V7htnLr7nK9R_x65kkZEA8
  • MS=ms71968286
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