How to check spelling before sending emails in Outlook?

Author Sun Last modified 2025-04-16

Spelling mistakes in emails can often leave a poor impression. Luckily, Outlook provides built-in features for spell checking before you send an email. However, if you're looking for an advanced and automated spelling check solution, "Kutools for Outlook" offers a powerful AI Assistant feature to help. Here's a complete guide to checking spelling before sending emails.

Use Outlook’s Built-in Spelling Check Feature

Use Kutools for Outlook’s AI Spelling Check Assistant

Use Outlook’s Built-in Spelling Check Feature

Here is an option can auto check spelling in words before sending messages.

1. Click "File" > "Options". See screenshot:

2. In the "Outlook Options" dialog, click "Mail" from left pane, and go to the "Compose messages" section, check "Always check spelling before sending" checkbox.

3. Click "OK". Now if there are some wrong spelling in your message, after clicking "Send" button, it will display a dialog to show you the wrong spelling, then you can ignore or change them.

Use Kutools for Outlook’s AI Spelling Check Assistant

For a smarter, more automated solution, "Kutools for Outlook" offers an "AI-driven spelling checker". This feature not only checks spelling but also enhances suggestions and provides better grammar corrections.

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Before using Kutools for Outlook’s AI Spelling Check, download and install Kutools for Outlook.

After composing an email message, please do as steps below:

Step 1. Click "Kutools" > "AI".

The "Kutools AI pane" displays in the right side of the message.

Step 2. Click the "Check" tab (if this tab is not visible, click the "Skill Library Management" icon and add this skill to the pane list). Then, click the "Generate" button.

The spelling and grammar errors will be displayed in the pane.

Step 3. Click on the listed items in the pane to correct the errors individually. Alternatively, click "Apply All" to replace all errors with the suggested corrections at once.