diako-online.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
diako-online.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 07:02:42 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • diakoonline-de01c.mail.protection.outlook.com

MX Priorities

  • diakoonline-de01c.mail.protection.outlook.com: 10

A / AAAA Records

  • 213.221.115.144 (no PTR)

Mail Server IPs

  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com

SOA Record

Raw SOA ns3.kundenserver.de hostmaster.kundenserver.de 2017040599 28800 7200 604800 300
Primary NS (mname)
ns3.kundenserver.de
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2017040599
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns4.kundenserver.de
ns3.kundenserver.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a:mail.luka.de a:smtp2.luka.de a:cpweb01.agaplesion.luka.de mx ip4:82.194.125.228 ip4:213.138.37.220 include:spf.protection.outlook.de include:spf.crsend.com include:spf-de.emailsignatures365.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 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

4 records
  • ms75307888
  • google-site-verification=YoztXZAaWktz5lsGVkX0oH_1J1BV9c-lLpW-LpUN-nw
  • MS=A84A2B7D368B5BF9EDD94F1A145D30A07B88E9C5
  • SPFv=spf1 a:mail.luka.de a:smtp2.luka.de a:cpweb01.agaplesion.luka.de mx ip4:82.194.125.228 ip4:213.138.37.220 include:spf.protection.outlook.de include:spf.crsend.com include:spf-de.emailsignatures365.com ~all
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for diako-online.de

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits