rbb-immo.de

Valid Email Server
Domain Lookup › rbb-immo.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rbb-immo.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 08:42:10 UTC · ↺ Refresh

MX Hostnames

  • mail.rbb-immo.de

MX Priorities

  • mail.rbb-immo.de: 0

A / AAAA Records

  • 85.13.129.114 ↩ dd29924.kasserver.com

Mail Server IPs

  • 93.240.127.251 ↩ p5df07ffb.dip0.t-ipconnect.de

SOA Record

Raw SOA ns5.kasserver.com hostmaster.kasserver.com 2510271257 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2510271257
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s

Nameservers (NS)

ns5.name-server-kas.de
ns6.kasserver.com
ns5.kasserver.com
ns3.ai-dns.de

SPF Record

✓ Strict (-all)
v=spf1 mx a:mail.rbb-immo.de include:kasserver.com include:kundenserver.de include:ispgateway.de ip4:85.13.129.114 ip4:80.67.18.14 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

3 records
  • kasserver.com
  • SPFv=spf1 mx a:mail.rbb-immo.de include:kasserver.com include:kundenserver.de include:ispgateway.de ip4:85.13.129.114 ip4:80.67.18.14 -all
  • kundenserver.de
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