Hi jinle_5454,
As I know, the default keyboard shortcut for sending emails in Outlook 2016 for Mac is Command + Return. And to change it to a strange keyboard shortcut that we’ll never type, you can refer to the following steps:
- Go to System Preferences & select Keyboard
- Press the Shortcuts tab
- On the lefthand side, select App Shortcuts
- Click the Add button
- Select Microsoft Outlook from the Application drop down list
- Set the Menu Title to ‘Send‘
- In the keyboard shortcut box, hold down whatever strange keyboard shortcut that you’ll be sure you never type.
- Restart Outlook
NOTE: In step 5, please make sure the Outlook client you selected is the one in use if you have multiple versions of Outlook 2016 for Mac installed on the Mac.
If the issue persists, I’d like to collect the following information for further troubleshooting:
- Like mentioned in this article, the keyboard shortcut to send an open message is Command + Return. Thus, may I confirm if you’ve customized the keyboard shortcut already since it’s fn+command+enter from your side?
https://support.office.com/en-us/article/Keyboard-shortcuts-for-Outlook-2016-for-Mac-07ae68c8-b7af-4010-b225-324c04ac7335
- A relevant screenshot about the modified shortcut for Send in App Shortcuts page.
- The detailed version of Outlook 2016 for Mac (In Outlook> About Outlook) like 15.32.0 (170309).
Thanks,
Sam