gradus-koeln.de

Valid Email Server
Domain Lookup › gradus-koeln.de

Domain Overview

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

Checked via [email protected] · 2026-03-18 19:44:35 UTC · ↺ Refresh

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MX Hostnames

  • graduskoeln-de01e.mail.protection.outlook.com

MX Priorities

  • graduskoeln-de01e.mail.protection.outlook.com: 10

A / AAAA Records

  • 81.20.143.233 ↩ h-233.sn3.sp.cgn.aiges.net

Mail Server IPs

  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.aiges.net dns.aiges.net 2023032305 7200 1200 604800 86400
Primary NS (mname)
ns1.aiges.net
Admin Email (rname)
dns@aiges.net
Serial
2023032305
Refresh
7200s
Retry
1200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns2.aiges.net
ns1.aiges.net

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.mx.aiges.net include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict 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

2 records
  • SPFv=spf1 include:_spf.mx.aiges.net include:spf.protection.outlook.com -all
  • MS=ms79699318
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