Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bb-gruppe.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 09:41:57 UTC · ↺ Refresh
MX Hostnames
- zimbra.bb-gruppe.de
MX Priorities
- zimbra.bb-gruppe.de: 100
A / AAAA Records
- 212.63.131.250 ↩ linux23.unixserver.org
- 2a02:708::2d:0:0:0:2 ↩ linux23.unixserver.org
Mail Server IPs
- 77.220.239.204 ↩ zimbra.bb-gruppe.de
SOA Record
Raw SOA
ns12.nameserver.de dnsmaster.ns12.nameserver.de 2026031100 10000 1800 604800 3600
Primary NS (mname)
ns12.nameserver.de
Admin Email (rname)
dnsmaster@ns12.nameserver.de
Serial
2026031100
Refresh
10000s
Retry
1800s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns12.nameserver.de
ns11.nameserver.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a:zimbra.bb-gruppe.de include:spf.clustermail.de ip4:77.235.173.237 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=none;rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
1 record- SPFv=spf1 a:zimbra.bb-gruppe.de include:spf.clustermail.de ip4:77.235.173.237 ~all
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