Disable Automatic Notification for Application Invitation
Administration > Manage Site Settings > General Settings
If you have activated the Application Invitation feature, this option allows you to disable the automatic email that is sent when the invite is created.
General Settings option:
Yes – Select if you do not want the automatic email Application: Application Invitation to be sent to an applicant that has been invited to apply. You will be responsible for notifying the applicant manually.
No – Select to automatically send the email Application: Application Invitation once an invite is created.