By default, Spear requires you to approve every prospect before any message is sent manually. This means nothing goes out without your review.
To confirm your campaign is set to manual:
Go to the Suggestions tab.
Check the Auto-approve toggle in the top-right corner.
If the toggle is off, your campaign is manual.
If the toggle is on, turn it off to return to manual approval.
Note: When Auto-approve is off, each prospect appears in your Suggestions queue for you to review before any outreach is sent.