Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lzu.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 02:40:28 UTC · ↺ Refresh
MX Hostnames
- mail.dextermedia.de
MX Priorities
- mail.dextermedia.de: 10
A / AAAA Records
- 85.236.47.136 ↩ mail.dextermedia.de
Mail Server IPs
- 85.236.47.137 ↩ mail.dextermedia.de
- 2001:4178:2:1147:85:236:59:180 ↩ mail.dextermedia.de
SOA Record
Raw SOA
dns01.ns15.net hostmaster.dextermedia.net.lzu.de 2024121800 10800 3600 604800 180
Primary NS (mname)
dns01.ns15.net
Admin Email (rname)
hostmaster@dextermedia.net.lzu.de
Serial
2024121800
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
180s
Nameservers (NS)
dns03.ns15.net
dns01.ns15.net
dns04.ns15.net
dns02.ns15.net
SPF Record
✓ Strict (-all)
v=spf1 mx a include:mail.dextermedia.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- 201805251558200m8cpr8cjs4nuz1sjnuvrwz1o4buopg4ev57y7d26sio92lqja
- 20180522133646412p8we4lhssq0lt059gnsxcx6y42r3z4jh9vua13s0l4pahps
- 201905070001192x4elp1g1udre1wsgsdnxvjxfaa36bv8rj1m8ox3qap4zyeejj
- SPFv=spf1 mx a include:mail.dextermedia.de -all
- 201806060943470o62ppvtljtaaj6k3bxkmuftfyytp4ahpk3ysz5wq2dch1rdkj
- 201905070001226dfeap1wapiv7b1cf7jc7v1vcfgoirsp3qmd3055gpe995i6ed
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