Automatically accept or decline meeting requests? Sounds a good idea! Actually, You can set up this option in Outlook if you want to accept or decline all meeting requests.
Step 1: Click the "File" tab from the Ribbon;
Step 2: Click "Options" from the left navigation to open the "Outlook Options" window;
Step 3: Click "Calendar" from the left navigation;
Step 4: Move down to "Automatic accept or decline" section, and click "Auto Accept/Decline" button;
Step 5: In the pop-up window, check the box of "Automatically accept meeting requests and remove canceled meetings";
Step 6: Choose one of the two other options as optional;
– Automatically decline meeting requests that conflict with an existing appointment or meeting;
– Automatically decline recurring meeting requests.
Step 7: Click "OK" to close the pop-up window, and click "OK" again to close the "Outlook Options" window.