rudolf-rost.de

Valid Email Server
Domain Lookup › rudolf-rost.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rudolf-rost.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 21:42:33 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • rudolfrost-de01e.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.9 ↩ 217-160-0-9.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::2e4 ↩ 2001-08d8-100f-f000-0000-0000-0000-02e4.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA ns1116.ui-dns.biz hostmaster.1und1.de 2017071054 28800 7200 604800 300
Primary NS (mname)
ns1116.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2017071054
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1116.ui-dns.org
ns1116.ui-dns.com
ns1116.ui-dns.biz
ns1116.ui-dns.de

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:213.209.124.137 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate 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

4 records
  • google-site-verification=T78vwO7t9J5uqMwCXg6nVQrorgsDXqd30OV5JKReW1M
  • ppe-5f7489ff5588bcf6cc85146616d233b79ce56cee
  • SPFv=spf1 ip4:213.209.124.137 include:spf.protection.outlook.com ~all
  • MS=ms73548749
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