How to Change Email Format in Outlook: Step-by-Step Guide for Cleaner Messages

Changing your email format in Outlook can transform how your messages look—especially when you’re sending professional emails or need that extra polish. ✨ I’ve spent years helping people clean up their email signatures, fonts, and layouts, and the simplest tweaks make the biggest difference.

Whether it’s switching to a sleek modern font or adjusting spacing for readability, these changes take less than five minutes but leave a lasting impression.

The key is knowing where to look—Outlook hides some formatting options behind menus most people overlook. I’ll walk you through the exact steps, from adjusting default fonts to customizing your signature’s appearance.

No technical jargon, just the straightforward path to making your emails look sharp without losing functionality. You’ll end up with a consistent, professional look that matches your brand or personal style.

This isn’t just about aesthetics—cleaner email formats reduce miscommunication and save time. Imagine sending a proposal where the recipient instantly notices your polished layout instead of struggling to read cluttered text.

Plus, once you’ve set it up, every new email will automatically reflect your changes, cutting down on last-minute formatting headaches.

Works for Outlook on Windows, Mac, or the web version—just follow the same principles. Here’s how to make it happen without missing a beat.

What you need

Step-by-Step instructions for customizing email display in Outlook

Here's how to transform your Outlook inbox into a cleaner, more functional workspace.

Open your Outlook application and navigate to the top menu bar. Click on File to open the main settings panel—this is where all format customizations begin. I always start here because it consolidates all display preferences in one location, making future adjustments easier.

In the left-hand navigation pane, select Options. This opens the Outlook Options dialog where you'll find the tools to modify how messages appear. Here's the thing—Outlook's default formatting can feel cluttered, so we're about to streamline it.

Within the Outlook Options window, locate and click Mail in the left sidebar. Scroll down to the Message format section where you'll find several key settings. First, check the box for Best fit under Font—this automatically adjusts text size based on your display resolution, preventing awkward line breaks.

Below that, you'll see Stationery and fonts. Click the Stationery and fonts button to open a new window where you can customize the default email template. Here's where you can change the background color, font type, and size for both new messages and replies—just make sure to click OK after making changes to save them.

Still in the Mail options, scroll further down to the Message reading section. This is where you control how messages are displayed in your inbox. For a cleaner look, enable Mark items as read when selection changes—this prevents messages from appearing bolded after you've read them, reducing visual clutter.

Next, check Show pictures if you want images to display automatically (though be cautious with this setting in work environments). Below that, you'll find the Reading Pane options. Select Right or Bottom to position the reading pane for optimal workflow—this keeps your inbox visible while you read messages without constant scrolling.

Return to the main Mail options and locate the Layout section. Here, you can adjust the number of columns displayed in your inbox. For most users, 3 columns provides a good balance between organization and visibility. If you're working with a large number of folders, consider reducing this to 2 columns to simplify navigation.

Below that, you'll find Auto-expand new subfolders. I always disable this—it creates unnecessary visual noise when new folders appear. Instead, manually expand folders as needed for better control. Finally, check Show number of unread items in folder list to quickly identify which folders contain unread messages without opening them.

Close the Outlook Options window and return to your inbox. Send yourself a test email with formatting (bold, italics, bullet points) to verify that your changes are applied consistently. Pay attention to how messages display in both the reading pane and preview mode—this ensures your customizations work across all views.

If anything looks off, reopen the Mail options and double-check your selections. Outlook sometimes resets certain preferences after updates, so I recommend bookmarking this settings page for quick access. Once everything looks clean and functional, you're ready to enjoy a more organized email experience.

Tips & tricks for customizing email display in Outlook

Here's what I've learned after helping hundreds of users streamline their Outlook experience—these tweaks make all the difference.

Bookmark Your Settings: Outlook's settings can feel overwhelming, so I recommend bookmarking the Mail options page (Ctrl+D) after your first customization. This saves you from navigating through menus every time you want to make adjustments. Between us, I've spent hours hunting through Outlook's interface after forgetting where I last made changes—don't make my mistake.

Test with Multiple Message Types: In Step 5, when you're testing your changes, don't just send yourself a plain text email. Include messages with attachments, HTML formatting, and images to verify everything displays correctly. I once spent an hour troubleshooting why my formatted emails looked perfect in the reading pane but broke in preview mode—turns out Outlook handles rich text differently depending on the message type.

Consider Your Workflow: Think about how you actually use Outlook when configuring the reading pane. If you're someone who constantly toggles between messages and your inbox, the Right position works best. For detailed reading sessions, Bottom keeps your inbox visible while you read. I've found that most power users prefer Right because it mimics the two-pane layout of professional email clients.

Backup Your Settings: Before making significant changes, I recommend exporting your current settings as a backup. In the File menu, select Options, then Advanced, and click Export. This creates an .oab file containing all your customizations. Trust me on this—Outlook updates sometimes reset preferences, and having a backup prevents hours of reconfiguration.

Frequently asked questions

Got questions about tweaking your Outlook email format? Here are answers to some of the most common queries—straight from the pros!

Wrapping up and next steps

Changing your email format in Outlook is simpler than you think—just a few clicks can transform your inbox into a cleaner, more organized space! Whether you’re tweaking signatures, adjusting fonts, or customizing HTML templates, these steps ensure your emails look polished and professional. 🎉

Now that you’ve mastered the basics, why not explore advanced formatting options like adding tables, embedding images, or even creating reusable templates? Your inbox (and recipients!) will thank you for the upgrade. Go ahead—make your emails shine!