Hi @Robert Hammond ,
Welcome to our forum!
From your description, you want to remove the Mention column, right?
Firstly, go to a folder such as your Inbox and right-click the Mention column, select remove this column.
Next, go to the View tab > Change View > Apply Current View to Other Mail Folders
If this doesn't help, please provide detailed information that we can do more troubleshooting:
- What detailed version are you using (File > Office Account > About Outlook)? Please check your version and upgrade it to the latest (File > Office Account > Update Options > Update Now).
If the issue continues, try to create a new profile and re-add your account and follow the steps I provided above to make the view setup to test.
To create a new profile, go to Control Pane > Mail > Show profiles > Add
Hope above can help you!
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