dpsg-koeln.de

Valid Email Server
Domain Lookup › dpsg-koeln.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
dpsg-koeln.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 11:55:05 UTC · ↺ Refresh

MX Hostnames

  • dpsgkoeln-de01b.mail.protection.outlook.com

MX Priorities

  • dpsgkoeln-de01b.mail.protection.outlook.com: 10

A / AAAA Records

  • 51.124.244.200 (no PTR)

Mail Server IPs

  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com

SOA Record

Raw SOA hydrogen.ns.hetzner.com dns.hetzner.com 2026031503 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2026031503
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

hydrogen.ns.hetzner.com
helium.ns.hetzner.de
oxygen.ns.hetzner.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.mailjet.com mx a ip4:78.46.123.52 ip6:2a01:4f8:222:1141:42::105 ip4:178.238.224.114 ip6:2a02:c200:0:10:3:0:5553:1 include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1

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

All TXT Records

4 records
  • MS=ms25842422
  • google-site-verification=-p27SzfLH6Ext4ZlzWQBMOswuBSIKR7PLEOycUcm9fc
  • google-site-verification=nm63pxNfhrWngavdbEPB8fib_ZY7KrLLWQY7ykuNlMg
  • SPFv=spf1 include:spf.mailjet.com mx a ip4:78.46.123.52 ip6:2a01:4f8:222:1141:42::105 ip4:178.238.224.114 ip6:2a02:c200:0:10:3:0:5553:1 include:spf.protection.outlook.com -all
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