1. Tool: DNSAadmin
Create the domain DNS with DNSAdmin
Try use one of the templates. Especially for all the autoconfiguration records.
After this the template should be removed from the domain. When a domain is DNSSEC signed a template update will create duplicate SOA records. PowerDNS is updating very thursday the RRSIG keys. That the slave DNS getting this new keys the serial number is updated -> new SOA record.
DNSAdmin does not recognise this and on a template update it thinks the SOA record is missing and creating a new one. Now the zone has two SOA records.
DKIM/DMARC records is at them moment still some manual work.
Will be automated.
More details at the end.
2. Tool PostfixAdmin
Create the email domain with postfixadmin - domain.ict-pros.co.tz
3. Tool Froxlor
Create the domain in Froxlor - hosting.ict-pros.co.tz