There can be a setting where user can on / off email notification.
If its on then user will receive notifications for all supported and subscribed camp or topics.
If it off then user will not receive any email notification for any topic or camp irrespective of support to camp or topic.
Camp Name : Email Notification Setting
Parent Camp : Agreement
Keywords : notification
Camp About URL :
Camp About Nick Name : No nickname associated
Disable additional sub camps : No
Single level camps only : No