# Add users to your network
Whether you have a network for personal use or manage your company's corporate network, you'd probably want to invite
people to your account and join your NetBird network.
There are two ways of adding users to a NetBird account - indirect and direct.
## Indirect user invites
This way of adding users is managed by the NetBird system and doesn't require administrator input.
It works only for organizations with private domains.
Whenever a new user signs up with a private domain (e.g., @netbird.io),
NetBird creates a new account and associates it with the netbird.io organization (domain) automatically. Every consequent user signup with the same @netbird.io domain in their email address will end up under the same organization.
How does it work? Every time a previously unknown user registers at [app.netbird.io](https://app.netbird.io/),
the system classifies the domain part of the email.
The domain can fall into one of the following categories - `public`, `private`, or `unclassified`.
The domains of the private category are the ones that are automatically grouped under the same account.
Public domains are the ones of the public email providers like Gmail.
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