biotopia.net

Valid Email Server

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

✗ 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

2 records
  • 14mei777d2tc3paj4d1ns8us0e
  • SPFv=spf1 include:spf.nl2go.com include:_spf.mail.lrz.de -all
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