So I can't quite parse it out from the page, maybe one of the Fastmail users can tell me.

I can set up 100 domains and 600 aliases, but if I want my wife to have access to hername@mydomain.com, does she need her own $5/mo account?

> I can set up 100 domains and 600 aliases, but if I want my wife to have access to hername@mydomain.com, does she need her own $5/mo account?

You can add her as a user to your account (so she can use your domain) and it costs an additional $5/mo for the separate user yes

Makes sense, thanks!

Nope. You can go nuts with domains, they just route to distinct folders.

That said, it’s one logical account, so your wife would have access to all folders/domains.

You can also set up catch-all addresses rather than manually setting up an alias per thing you sign up for

https://www.fastmail.com/help/receive/alias-catchall.html

Oh, nice - that's even better!

My guess is that by "more than one email address" they meant more than one person/address. That's why I haven't switched, adding in accounts for my wife and kids makes it to much. It's to bad they discontinued the family account.