one.de

Valid Email Server
Domain Lookup › one.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
one.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-27 18:05:23 UTC · ↺ Refresh

MX Hostnames

  • mail2.one.de
  • mail.ectgroup.de

MX Priorities

  • mail.ectgroup.de: 10
  • mail2.one.de: 20

A / AAAA Records

  • 172.66.162.148 (no PTR)
  • 104.20.43.152 (no PTR)
  • 2606:4700:10::ac42:a294 (no PTR)
  • 2606:4700:10::6814:2b98 (no PTR)

Mail Server IPs

  • 80.228.42.171 ↩ leasedline-static-080-228-042-171.ewe-ip-backbone.de
  • 80.228.63.125 ↩ leasedline-static-080-228-063-125.ewe-ip-backbone.de

SOA Record

Raw SOA cruz.ns.cloudflare.com dns.cloudflare.com 2399911771 10000 2400 604800 1800
Primary NS (mname)
cruz.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399911771
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

cruz.ns.cloudflare.com
phil.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 mx a:srv6v1.one.de a:mgw01.bluechip.de a:mgw02.bluechip.de ip4:172.28.20.0/24 include:spf.crsend.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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 mx a:srv6v1.one.de a:mgw01.bluechip.de a:mgw02.bluechip.de ip4:172.28.20.0/24 include:spf.crsend.com -all
  • 2t0dh6ghjo5e9f74rsl6n5g7o9
  • MS=ms53995763
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