Create New Mailbox

Email Address

Password (min. 8 chars) Suggest password

Quota (MB)

Role Standard Mail User System Administrator

Add Mailbox

Active Mailboxes (IMAP / SMTP / Sieve / CalDAV / CardDAV)

Create Mail Alias / Catch-All

Alias Source (or @domain for catch-all)

Forwards To Destination

Add Alias

DNS Mode Configuration (Optional vs. Integrated Authoritative NS)

Serving authoritative DNS directly on this box (with automatic sync to Secondary NS2) is strongly recommended, as MailBoo automatically manages DKIM, SPF, DMARC, DANE TLSA, MTA-STS, and DNSSEC. If you prefer to host DNS externally at your registrar, switch to External DNS Mode below and copy the generated records.

DNS Operating Mode Authoritative Nameserver on Box + NS2 (Recommended) External DNS Provider (Manual Zone Export)

Save DNS Mode

Hosted Mail Domains & DNSSEC DS Records

Add Additional Domain

Add Domain & Generate DKIM/DNSSEC

Add Custom DNS Record

Domain

Subdomain / Name (@ for apex)

Type A AAAA CNAME TXT MX SRV CAA

Value / Target

Add DNS Record

Zone Records Inspector (demourl.de)

One-Liner Bootstrap Script for Secondary DNS Host (5.196.172.75)

Run either the curl or wget command below as root on your secondary host (ns2.demourl.de / 5.196.172.75). It automatically installs nsd, configures the firewall, fetches the TSIG key and zone catalog over HTTPS from this primary box, transfers all signed zones via TSIG AXFR, and sets up a 2-minute sync timer.

Option A — Install via curl on 5.196.172.75: Option B — Install via wget on 5.196.172.75:

Secondary Nameserver Settings

NS2 Hostname

NS2 IPv4 Address (TSIG AXFR & NOTIFY ACL)

Update NS2 Settings

Registered Secondary DNS Nodes & Sync Status