I want to send mails through UiPath studio on outlook, but the activity keeps asking to allow UiPath to use outlook. Is there any way this pop up can be removed?
The access requirement is controlled by Windows Security setting. You can refer to the link below for details.
Outlook requires Allow access when sending email - Help - UiPath Community Forum
Outlook Security Settings: Sometimes, Outlook has security settings.
Try Below Steps
In Outlook, go to File → Options → Trust Center → Trust Center Settings → Programmatic Access. Make sure “Never warn me about suspicious activity” is selected.
Hope it will helps you 
Cheers!!
You have to change the settings on outlook…if you dont have access mostly you need to contact your IT team
cheers