onegroup.de

Valid Email Server
Domain Lookup › onegroup.de

Domain Overview

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

Checked via [email protected] · 2026-03-19 12:56:33 UTC · ↺ Refresh

MX Hostnames

  • mailgateway2.d-con.net
  • mailgateway1.d-con.net

MX Priorities

  • mailgateway2.d-con.net: 20
  • mailgateway1.d-con.net: 10

A / AAAA Records

  • 82.165.206.251 (no PTR)

Mail Server IPs

  • 213.208.156.171 ↩ mailgateway2.d-con.net
  • 213.208.136.225 ↩ mailgateway1.d-con.net

SOA Record

Raw SOA ns1103.ui-dns.de hostmaster.1und1.com 2017060154 28800 7200 604800 600
Primary NS (mname)
ns1103.ui-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060154
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1078.ui-dns.org
ns1098.ui-dns.com
ns1103.ui-dns.de
ns1027.ui-dns.biz

SPF Record

✓ Strict (-all)
v=spf1 ip4:217.110.25.18 ip4:82.165.206.251 include:_spf.soravia.at include:spf.xpecto.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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

5 records
  • knowbe4-site-verification=580bacfa4460a1baedf738544a05ab68
  • SPFv=spf1 ip4:217.110.25.18 ip4:82.165.206.251 include:_spf.soravia.at include:spf.xpecto.com -all
  • google-site-verification=2Q-JQZ1T-vOhh_B9NeMZQIoEShCBKdMK-Usm2MN6rNw
  • atlassian-domain-verification=IDb7fuFngM4wdC7mf4YVS5RUx0PT6PmN4PpYDwnxLYow4tVAAqQozNCMDzwlY68x
  • MS=ms23137211
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