rud.de

Valid Email Server
Domain Lookup › rud.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rud.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-02 16:20:30 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • rud-de.mail.protection.outlook.com: 5

A / AAAA Records

  • 62.116.130.8 ↩ redirect.domain-robot.org

Mail Server IPs

  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com

SOA Record

Raw SOA a.managed-ns.com domainadmin.managed-ip.com 2025094535 43200 7200 1209600 86400
Primary NS (mname)
a.managed-ns.com
Admin Email (rname)
domainadmin@managed-ip.com
Serial
2025094535
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

b.managed-ns.de
a.managed-ns.com

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:217.89.100.173 ip4:217.89.100.174 include:spf.protection.outlook.com include:spf.symprex.net -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

✓ 1 found
dkim._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: dkim

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

All TXT Records

2 records
  • SPFv=spf1 mx ip4:217.89.100.173 ip4:217.89.100.174 include:spf.protection.outlook.com include:spf.symprex.net -all
  • MS=ms47366470
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