netextreme.de

Valid Email Server
Domain Lookup › netextreme.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
netextreme.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 13:36:55 UTC · ↺ Refresh

MX Hostnames

  • mxext3.mailbox.org
  • mxext2.mailbox.org
  • mxext1.mailbox.org

MX Priorities

  • mxext3.mailbox.org: 20
  • mxext1.mailbox.org: 10
  • mxext2.mailbox.org: 10

A / AAAA Records

  • 78.46.84.78 ↩ srv4.m-f-i-s-c-h-e-r.de

Mail Server IPs

  • 80.241.60.216 ↩ mx3.mailbox.org
  • 2001:67c:2050:104::3:25:1 ↩ mx3.mailbox.org
  • 80.241.60.212 ↩ mx1.mailbox.org
  • 2001:67c:2050:104::1:25:1 ↩ mx1.mailbox.org
  • 80.241.60.215 ↩ mx2.mailbox.org
  • 2001:67c:2050:104::2:25:1 ↩ mx2.mailbox.org

SOA Record

Raw SOA ns1.domaindiscount24.net tech.key-systems.net 2025031703 10800 3600 604800 28800
Primary NS (mname)
ns1.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2025031703
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s

Nameservers (NS)

ns2.domaindiscount24.net
ns3.domaindiscount24.net
ns1.domaindiscount24.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:mailbox.org ~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

3 records
  • SPFv=spf1 include:mailbox.org ~all
  • =DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2K4PavXoNY8eGK2u61LIQlOHS8f5sWsCK5b+HMOfo0M+aNHwfqlVdzi/IwmYnuDKuXYuCllrgnxZ4fG4yVaux58v9grVsFHdzdjPlAQfp5rkiETYpCMZwgsmdseJ4CoZaosPHLjPumFE/Ua2WAQQljnunsM9TONM9L6KxrO9t5IISD1XtJb0bq1lVI/e72k3m nPd/q77qzhTDmwN4TSNJZN8sxzUJx9HNSMRRoEIHSDLTIJUK+Up8IeCx0B7CiOzG5w/cHyZ3AM5V8lkqBaTDK46AwTkTVGJf59QxUZArG3FEH5vy9HzDmy0tGG+053/x4RqkhqMg5/ClDm+lpZqWwIDAQAB
  • DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqxEKIg2c48ecfmy/+rj35sBOhdfIYGNDCMeHy0b36DX6MNtS7zA/VDR2q5ubtHzraL5uUGas8kb/33wtrWFYxierLRXy12qj8ItdYCRugu9tXTByEED05WdBtRzJmrb8YBMfeK0E0K3wwoWfhIk/wzKbjMkbqYBOTYLlIcVGQWzOfN7/n3n+VChfu6sGFK3k2 qrJNnw22iFy4C8Ks7j77+tCpm0PoUwA2hOdLrRw3ldx2E9PH0GVwIMJRgekY6cS7DrbHrj/AeGlwfwwCSi9T23mYvc79nVrh2+82ZqmkpZSTD2qq+ukOkyjdRuUPck6e2b+x141Nzd81dIZVfOEiwIDAQAB
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