Domains are free during your initial setup — your subscription pays for mailboxes, not domains. After the initial setup period, Maildoso-managed domains are available at a cost of $12 per year per domain. Alternatively, you can use your existing domains by delegating them to Maildoso’s nameservers, allowing Maildoso to manage DNS settings for seamless operation.
If you remove a domain and add a new one to replace it, the replacement domain costs $12 (the price of registering the new domain) — see Domain replacement for the full process.
Transferring a domain out to your own registrar is a separate process — see Transferring your domains out of Maildoso.