* `enabled`: Enables the send a direct message to a newly registered user. Defaults to `false`.
* `sender_nickname`: The nickname of the local user that sends the welcome message.
* `message`: A message that will be send to a newly registered users as a direct message.
+* `chat_message`: - welcome message sent as a chat message.
+ * `enabled`: Enables the send a chat message to a newly registered user. Defaults to `false`.
+ * `sender_nickname`: The nickname of the local user that sends the welcome message.
+ * `message`: A message that will be send to a newly registered users as a chat message.
* `email`: - welcome message sent as a email.
* `enabled`: Enables the send a welcome email to a newly registered user. Defaults to `false`.
* `sender`: The email address or tuple with `{nickname, email}` that will use as sender to the welcome email.
* `sign_object_fetches`: Sign object fetches with HTTP signatures
* `authorized_fetch_mode`: Require HTTP signatures for AP fetches
+## Pleroma.User
+
+* `restricted_nicknames`: List of nicknames users may not register with.
+* `email_blacklist`: List of email domains users may not register with.
+
## Pleroma.ScheduledActivity
* `daily_user_limit`: the number of scheduled activities a user is allowed to create in a single day (Default: `25`)