otto-bitzer.de

Valid Email Server
Domain Lookup › otto-bitzer.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
otto-bitzer.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 07:35:22 UTC · ↺ Refresh

MX Hostnames

  • ottobitzer-de01b.mail.protection.outlook.com

MX Priorities

  • ottobitzer-de01b.mail.protection.outlook.com: 0

A / AAAA Records

  • 135.236.29.53 (no PTR)

Mail Server IPs

  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com

SOA Record

Raw SOA ns1032.ui-dns.org hostmaster.1und1.de 2016110448 28800 7200 604800 300
Primary NS (mname)
ns1032.ui-dns.org
Admin Email (rname)
hostmaster@1und1.de
Serial
2016110448
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1032.ui-dns.com
ns1032.ui-dns.de
ns1032.ui-dns.org
ns1032.ui-dns.biz

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ip4:208.117.55.133 ip4:149.72.39.137 ip4:195.243.206.2 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com ~all
📊 DNS lookups: 3/10
~ 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

2 records
  • google-site-verification=oNAcFx3B4vyfPWG-p3ylKD1e0lAXv_e-JKxPVaRRykQ
  • SPFv=spf1 mx ip4:208.117.55.133 ip4:149.72.39.137 ip4:195.243.206.2 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com ~all
Full email verification for otto-bitzer.de

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits