classen.de

Valid Email Server
Domain Lookup › classen.de

Domain Overview

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

Checked via [email protected] · 2026-04-01 07:43:57 UTC · ↺ Refresh

MX Hostnames

  • classen-de.mail.protection.outlook.com

MX Priorities

  • classen-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.31 ↩ 217-160-0-31.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::266 ↩ 2001-08d8-100f-f000-0000-0000-0000-0266.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com

SOA Record

Raw SOA ns1099.ui-dns.org hostmaster.schlund.de 2017013309 28800 7200 604800 300
Primary NS (mname)
ns1099.ui-dns.org
Admin Email (rname)
hostmaster@schlund.de
Serial
2017013309
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1099.ui-dns.biz
ns1099.ui-dns.org
ns1099.ui-dns.de
ns1099.ui-dns.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:109.75.210.229/27 ip4:212.184.223.71/28 ip4:81.209.248.214 ip4:46.165.167.194/30 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

5 records
  • apple-domain-verification=bR77V6E9FdRDY6jk
  • ZOOM_verify_hCKHdWHIRuuonyCBa7W6tQ
  • google-site-verification=TTLC1F4aCSSh5DGytoMUjQ4gCQq_lwAf_4TM3tJ4AgQ
  • google-site-verification=5APEX3USRwGDwHERe5jL0LC2-cLC3ebCRh3cA7HYXV0
  • SPFv=spf1 ip4:109.75.210.229/27 ip4:212.184.223.71/28 ip4:81.209.248.214 ip4:46.165.167.194/30 include:spf.protection.outlook.com ~all
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