How to setup email configuration in different git source code

Hi guys,

I’m now handling a project using
Katalon, however i have setup an email configuration which will
broadcast email to my project management every time the Test Suite
executed. However, our team will still continue develop test cases, how
to i control the email just only send email while i finished certain
test suite, not will send email all the time even test executed or not allow other team member to has their own email preferences in their gitlab source and won’t not override my master code preferences?