rsc-duelmen.de

Valid Email Server
Domain Lookup › rsc-duelmen.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rsc-duelmen.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 04:02:21 UTC · ↺ Refresh

MX Hostnames

  • rscduelmen-de0i.mail.protection.outlook.com

MX Priorities

  • rscduelmen-de0i.mail.protection.outlook.com: 10

A / AAAA Records

  • 18.197.77.199 ↩ ec2-18-197-77-199.eu-central-1.compute.amazonaws.com

Mail Server IPs

  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com

SOA Record

Raw SOA ns1057.ui-dns.org hostmaster.1und1.com 2017060135 28800 7200 604800 600
Primary NS (mname)
ns1057.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060135
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1057.ui-dns.org
ns1119.ui-dns.biz
ns1058.ui-dns.de
ns1099.ui-dns.com

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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

No TXT records found.

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