Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bt-elektro.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 03:57:23 UTC · ↺ Refresh
MX Hostnames
- mail1.firmengruppe-birke.de
- mail2.firmengruppe-birke.de
- mail.firmengruppe-birke.de
MX Priorities
- mail1.firmengruppe-birke.de: 10
- mail.firmengruppe-birke.de: 0
- mail2.firmengruppe-birke.de: 20
A / AAAA Records
- 159.69.24.31 ↩ webcluster07a.goller.cc
Mail Server IPs
- 80.153.54.251 ↩ mail.firmengruppe-birke.de
- 91.240.164.179 ↩ vpn.birke-gmbh.de
SOA Record
Raw SOA
a.ns14.net info.lamp4you.de 2025110500 43200 7200 1209600 86400
Primary NS (mname)
a.ns14.net
Admin Email (rname)
info@lamp4you.de
Serial
2025110500
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
d.ns14.net
b.ns14.net
a.ns14.net
c.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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
1 record- SPFv=spf1 mx -all
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