roentgen-dresden.de

Valid Email Server
Domain Lookup › roentgen-dresden.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
roentgen-dresden.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 13:42:20 UTC · ↺ Refresh

MX Hostnames

  • mars02.grommunio.ibh.services
  • mars01.grommunio.ibh.services

MX Priorities

  • mars02.grommunio.ibh.services: 10
  • mars01.grommunio.ibh.services: 10

A / AAAA Records

  • 188.68.47.187 ↩ a2fbb.netcup.net
  • 2a03:4000:30:55ec::12:2080 (no PTR)

Mail Server IPs

  • 212.111.234.241 ↩ mars02.grommunio.ibh.services
  • 212.111.234.246 ↩ mars01.grommunio.ibh.services

SOA Record

Raw SOA root-dns.netcup.net dnsadmin.netcup.net 2025052845 28800 7200 1209600 3600
Primary NS (mname)
root-dns.netcup.net
Admin Email (rname)
dnsadmin@netcup.net
Serial
2025052845
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

second-dns.netcup.net
root-dns.netcup.net
third-dns.netcup.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.grommunio.ibh.services -all
📊 DNS lookups: 1/10
✓ 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
  • SPFv=spf1 include:spf.grommunio.ibh.services -all
  • MS=47D245D79D37DFCFB461D0B76DAA800D72EB9E74
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