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How do I open the Mailbutler sidebar in Outlook?

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How do I open the Mailbutler sidebar in Outlook?

This article shows you where to find the button that opens the Mailbutler sidebar in Outlook.

Last updated on 10 Apr, 2026

Outlook app (Mac)

Inbox and sent folder

1. Open your Outlook inbox/sent folder.

2. Select an email.

3. Click on the three dots in your Outlook toolbar and then click on Mailbutler in the menu.

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4. The Mailbutler sidebar is now opened.

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5. To learn how to pin the Mailbutler sidebar to your inbox/sent folder/compose window, so that it is open by default, please head to this article.

Compose Window

1. Start a draft.

2. Click on the three dots in your Outlook toolbar and then click on Show Sidebar in the menu.

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3. The Mailbutler sidebar is now opened.

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4. To learn how to pin the Mailbutler sidebar to your compose window/inbox/sent folder, so that it is open by default, please head to this article.


Outlook app (Windows)/Outlook.Office.com

Inbox and sent folder

1. Open your Outlook inbox/sent folder.

2. Select an email.

3. Click the Mailbutler icon within the email view mode.

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4. If the Mailbutler icon is not visible, click the Apps icon inside the email view mode.

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5. Then click the Mailbutler icon.

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6. The Mailbutler sidebar is now opened.

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6. To learn how to pin the Mailbutler sidebar to your inbox/sent folder/compose window, so that it is open by default, please head to this article.

Compose window

1. Start a draft.
2. Click the Apps icon.

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3. From the Apps window, click on the Mailbutler icon.

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4. Then, select Show Sidebar from the dropdown menu.

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5. The Mailbutler sidebar is now opened.

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6. To learn how to pin the Mailbutler sidebar to your compose window/inbox/sent folder, so that it is open by default, please head to this article.

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