how to stop email notifications

every change that I make on the pages of confluence: delete, insert, update, my colleagues in my own space users are receiving an email. this behavior is becoming a problem. even though I have disabled the automatic notification of changes in the pages or spaces I do not know what other configuration panel to act to prevent this flood of email.

ttps://confluence.atlassian.com/display/DOC/Subscribing+to+Email+Notifications+of+Updates+to+Confluence+Content

https://confluence.atlassian.com/display/DOC/Configuring+the+Recommended+Updates+Email+Notification

I've read these two pages and also many other associates. the problem is that it seems to be the default for every user the function of watching the space. this can not be disabled even if you are administrator of the plan. it seems that an operation should be voluntary on the part of users.