can you expand on this? Are all domains under a single "user" account? the Fastmail web site is rather unclear about multiple domains and multiple addresses per domain. thx
Yes, you just add new domains in the settings. It’s incredibly powerful. For each domain you can have seemingly unlimited addresses, either mapped to your main user account or as a forwarder. If you want multiple accounts (ie. different users logging into to individual accounts) for a domain then you have to pay for each.