openknowledge.de

Valid Email Server
Domain Lookup › openknowledge.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
openknowledge.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 14:19:58 UTC · ↺ Refresh

MX Hostnames

  • openknowledge-de.mail.eo.outlook.com

MX Priorities

  • openknowledge-de.mail.eo.outlook.com: 10

A / AAAA Records

  • 198.202.211.1 (no PTR)

Mail Server IPs

  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com

SOA Record

Raw SOA a.ns14.net service\.han.acp.de 2025100225 43200 7200 1209600 86400
Primary NS (mname)
a.ns14.net
Admin Email (rname)
service\@han.acp.de
Serial
2025100225
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

a.ns14.net
c.ns14.net
b.ns14.net
d.ns14.net

SPF Record

✓ Soft Fail (~all)
v=spf1 a ip4:178.77.121.128/26 ip4:46.4.238.128/29 ip4:158.69.163.48/29 ip4:194.42.96.0/24 ip6:2a01:4f8:10a:f09::/64 include:_spf.mittelstandscloud.de include:spf.crsend.com include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com ~all
📊 DNS lookups: 5/10
~ 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

8 records
  • hubspot-gk7V9Xr33btv
  • apple-domain-verification=LGbisNTiUv5xNrhT
  • MS=F7D94A339FAF9E4C25846FF8E732EFD0E0AFE25C
  • proxy-ssl.webflow.com
  • google-site-verification=cgJw12OT2fVRwXhybrzVyvANOrkOVBztCTRAtX3hm10
  • google-site-verification=HHpvrKXj2qYCo29rjominiU4d_fFtQcmlyNPc_oHi_0
  • ZOOM_verify_7Z1FBc-AQkG8jOoq4aS_6Q
  • SPFv=spf1 a ip4:178.77.121.128/26 ip4:46.4.238.128/29 ip4:158.69.163.48/29 ip4:194.42.96.0/24 ip6:2a01:4f8:10a:f09::/64 include:_spf.mittelstandscloud.de include:spf.crsend.com include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com ~all
Full email verification for openknowledge.de

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

SPF / DKIM / DMARC Get 1,000 Free Credits