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Microsoft 365 and Office | Development | Other
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Hi @Rickhantz,
Welcome to Microsoft Q&A, and thank you very much for reaching out to us.
Based on your description, I tested this on my side. When I enable the Developer tab by navigating to File > Options > Customize Ribbon and selecting Developer, the tab appears as expected:
I also researched this further and found no information indicating that Microsoft has stopped supporting or remove Developer Mode in Classic Outlook.
To assist you further, could you please share a screenshot of your Customize Ribbon window and your Outlook interface via a private message?
In the meantime, I suggest you creating a new Outlook profile, as this often resolves UI rendering issues or missing ribbon elements:
Press Windows + R and type: Outlook.exe /profiles, press Enter.
When the Choose Profile dialog appears, select Options, then click New.
Enter a name for the new profile and follow the prompts to add your email account.
I hope this helps, looking forward to your response.
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