testsieger.de

Valid Email Server
Domain Lookup › testsieger.de
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
testsieger.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-04 14:24:00 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

  • testsieger-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 46.253.18.17 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns11.constellix.com dns.constellix.com 2015010159 43200 3600 1209600 180
Primary NS (mname)
ns11.constellix.com
Admin Email (rname)
dns@constellix.com
Serial
2015010159
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns31.constellix.com
ns41.constellix.net
ns51.constellix.net
ns61.constellix.net
ns11.constellix.com
ns21.constellix.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com a:mx.testsieger.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=r; aspf=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

7 records
  • MS=ms51312191
  • google-gws-recovery-domain-verification=50605442
  • brevo-code:a4b6726807a4ddad74aa2dc3198cef4a
  • atlassian-domain-verification=DmLHKcWGwkPyhCkSxLgJEHCJ/haI94uBIUcYw3RMCq20JzW8PZO2fQcp3hZuvuxw
  • slack-domain-verification=6fAydgKgYEI30MSDAljPqs8v9wCNETqFVnbcbJsy
  • 1password-site-verification=YQ56XKXAAREVPN3SOGQQF7NBLM
  • SPFv=spf1 include:spf.protection.outlook.com a:mx.testsieger.de -all
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