Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rls-showlasersysteme.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 02:16:45 UTC · ↺ Refresh
MX Hostnames
- mx1.rt.cmo.de
- mx0.rt.cmo.de
MX Priorities
- mx0.rt.cmo.de: 10
- mx1.rt.cmo.de: 10
A / AAAA Records
- 81.90.33.38 ↩ idefix5.rt.cmo.de
- 2001:4ce0::2:0:0:0:1f ↩ idefix5.rt.cmo.de
Mail Server IPs
- 81.90.33.50 ↩ smtp5.rt.cmo.de
- 2001:4ce0::2:0:0:0:34 ↩ smtp5.rt.cmo.de
SOA Record
Raw SOA
ns6.cmo.de sommer.cmo.de 2019051318 10800 3600 604800 3600
Primary NS (mname)
ns6.cmo.de
Admin Email (rname)
sommer@cmo.de
Serial
2019051318
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns6.cmo.de
ns7.cmo.de
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
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
No TXT records found.
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