sv-on.de

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
sv-on.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-04 19:55:44 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 195.201.121.168 ↩ static.168.121.201.195.clients.your-server.de

Mail Server IPs

  • 80.241.60.215 ↩ mx2.mailbox.org
  • 2001:67c:2050:104:0:2:25:1 ↩ mx2.mailbox.org
  • 80.241.60.216 ↩ mx3.mailbox.org
  • 2001:67c:2050:104:0:3:25:1 ↩ mx3.mailbox.org
  • 80.241.60.212 ↩ mx1.mailbox.org
  • 2001:67c:2050:104:0:1:25:1 ↩ mx1.mailbox.org

SOA Record

Raw SOA ns1.first-ns.de dns.hetzner.com 2026041804 14400 1800 1209600 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026041804
Refresh
14400s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.first-ns.de
robotns2.second-ns.de
robotns3.second-ns.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.mailjet.com include:mailbox.org -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 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

1 record
  • SPFv=spf1 include:spf.mailjet.com include:mailbox.org -all
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