sikin.de

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

Domain Overview

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

Checked via [email protected] · 2026-09-04 18:24:35 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

  • mxext2.mailbox.org: 10
  • mxext1.mailbox.org: 10
  • mxext3.mailbox.org: 200

A / AAAA Records

  • 217.197.83.160 ↩ willek.in-berlin.de
  • 2001:67c:1400:20e0::1 ↩ willek.in-berlin.de

Mail Server IPs

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

SOA Record

Raw SOA shades16.rzone.de hostmaster.strato-rz.de 2020051946 86400 7200 604800 300
Primary NS (mname)
shades16.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020051946
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

docks14.rzone.de
shades16.rzone.de

SPF Record

✓ Strict (-all)
v=spf1 include:mailbox.org -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; 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:mailbox.org -all
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