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Hi @Janet Bates
Thank you for posting question to Microsoft Q&A forum.
May I ask if you are using Classic Outlook, New Outlook for Windows or Legacy Outlook, New Outlook for Mac?
For New Outlook Windows: Go to View tab > Zoom > You can reset or choose minus to zoom out.
For Classic Outlook, make sure Immersive Reader is off, if you see something like this, choose Close. You can also check for the zoom in button on the bottom right.
For both Legacy and New Outlook Mac, you can use your fingers pinch in to zoom out.
If this is not what you meant, please provide screenshot and your Outlook version via private message.
I look forward for your reply.
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