If you have some accounting software/system which need to sending the email to all your customer/staff, and they require an outlook to be sent as behave. Normally user will facing a issue which show as below image
You would not want to go through those process by clicking allow and wait for over 100 times. you can actually do this in your outlook setting. But before that you must make sure you have some proper antivirus such as AVG. originally microsoft security essential will not be able to do it.
Run Outlook as Administrator
Note: To change the Programmatic Access setting in Outlook’s Trust Center, you need to run Outlook as an Administrator. You only need run as administrator one time, and once you make the change it will be in effect for all Outlook profiles on the computer.
To do this in Windows 7 and older, right click on the Outlook shortcut and choose Run as Administrator from the menu. If you don’t see Run as Administrator listed as an option, hold Ctrl+Shift as you right click on the Outlook shortcut.
If using Windows 8’s Start screen, right click and choose Run as Administrator from the taskbar. When Outlook is pinned to the desktop Taskbar, hold Ctrl+Shiftand right click on the Taskbar icon.
After Outlook loads, go to Tools, Trust Center (Outlook 2007) or File, Options, Trust Center (Outlook 2010 and up) and change the Programmatic Access setting.
The next time you restart Outlook, start it in “normal” mode.