ritterundfrank.de

Valid Email Server

Domain Overview

DNS: ✓ 4d ago Checker: ✓ 4d ago
ritterundfrank.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-18 03:06:47 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • ritterundfrank-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 168.119.251.94 ↩ srv23.ondics.de

Mail Server IPs

  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA a.ns14.net domain.ondics.de 2023111300 10800 3600 604800 10800
Primary NS (mname)
a.ns14.net
Admin Email (rname)
domain@ondics.de
Serial
2023111300
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

b.ns14.net
d.ns14.net
c.ns14.net
a.ns14.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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

4 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • google-site-verification=nQH0w2zOLIV5Q9TusgLsFNjRLbZORb7KIrDQPeB9YrY
  • MS=ms46899435
  • apple-domain-verification=puhlMuWvWpxbib1n
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