Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
biotopia.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 06:15:47 UTC · ↺ Refresh
MX Hostnames
- postrelay2.lrz.de
- postrelay1.lrz.de
MX Priorities
- postrelay2.lrz.de: 100
- postrelay1.lrz.de: 100
A / AAAA Records
- 5.175.14.39 ↩ wp517.webpack.hosteurope.de
- 2a01:488:42:1000:50ed:8227::21cc (no PTR)
Mail Server IPs
- 129.187.255.161 ↩ postrelay2b.lrz.de
- 129.187.254.159 ↩ postrelay2a.lrz.de
- 2001:4ca0::103:0:0:81bb:ffa1 ↩ postrelay2b.lrz.de
- 2001:4ca0::103:0:25:1:2 ↩ postrelay2a.lrz.de
- 129.187.255.160 ↩ postrelay1b.lrz.de
- 129.187.254.158 ↩ postrelay1a.lrz.de
- 2001:4ca0::103:0:25:1:1 ↩ postrelay1a.lrz.de
- 2001:4ca0::103:0:0:81bb:ffa0 ↩ postrelay1.lrz.de
SOA Record
Raw SOA
ns73.domaincontrol.com dns.jomax.net 2026031601 28800 7200 604800 600
Primary NS (mname)
ns73.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031601
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns74.domaincontrol.com
ns73.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.nl2go.com include:_spf.mail.lrz.de -all
📊 DNS lookups: 2/10
✓ 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
2 records- 14mei777d2tc3paj4d1ns8us0e
- SPFv=spf1 include:spf.nl2go.com include:_spf.mail.lrz.de -all
Full email verification for biotopia.net
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits