Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
biller-radolfzell.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 06:17:34 UTC · ↺ Refresh
MX Hostnames
- mx-b.secumail.de
- mx-a.secumail.de
MX Priorities
- mx-b.secumail.de: 10
- mx-a.secumail.de: 10
A / AAAA Records
- 212.124.41.163 (no PTR)
Mail Server IPs
- 212.11.224.154 ↩ sc04.secumail.de
- 212.11.224.132 ↩ sc02.secumail.de
- 212.11.225.17 ↩ sc03.secumail.de
- 212.11.225.133 ↩ sc01.secumail.de
SOA Record
Raw SOA
ns1056.ui-dns.org hostmaster.1und1.com 2017060155 28800 7200 604800 600
Primary NS (mname)
ns1056.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060155
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1056.ui-dns.org
ns1068.ui-dns.de
ns1125.ui-dns.com
ns1023.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.secumail.de include:spf.protection.outlook.com include:_spf-eu.ionos.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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
2 records- SPFv=spf1 include:spf.secumail.de include:spf.protection.outlook.com include:_spf-eu.ionos.com ~all
- MS=ms35480618
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