Adjusting the reply font in Outlook ensures your responses are always easy to read. If you have ever wondered how to change reply font in outlook, you are not alone. Many users find the default font too small, too plain, or just not matching their personal style. The good news is that Outlook gives you full control over the font used when you reply to emails. This guide walks you through every method, from the desktop app to the web version, so you can set your preferred font in just a few clicks.
Outlook’s default reply font is often Calibri or Times New Roman, depending on your version. But you might want something bolder, larger, or more professional. Changing it is simple once you know where to look. We cover all steps in detail, with screenshots in mind, so you can follow along without confusion. Let’s start with the most common method for Outlook desktop users.
How To Change Reply Font In Outlook Desktop
For the desktop version of Outlook, the process is straightforward. You adjust the font settings through the File menu. Here is how to do it step by step.
Step 1: Open Outlook And Go To File
Launch Outlook on your computer. Click on the File tab in the top-left corner. This opens the backstage view with several options.
Step 2: Access Options
In the File menu, look for Options at the bottom of the left sidebar. Click it to open the Outlook Options dialog box.
Step 3: Navigate To Mail Settings
In the Options window, select Mail from the left-hand list. Then, click the button labeled Stationery and Fonts. This button is near the bottom of the Mail section.
Step 4: Set Your Reply Font
A new window called Signatures and Stationery appears. Go to the Personal Stationery tab. Under the New mail messages section, you can change the font for new emails. But for replies, look at the Replying or forwarding messages section. Click the Font button there.
A standard font dialog box opens. Choose your desired font, style, size, color, and effects. For example, you might pick Arial, Regular, size 12, and dark blue. Click OK to confirm. Then click OK again to close the Signatures and Stationery window. Finally, click OK in the Outlook Options window.
Your reply font is now updated. Test it by replying to any email. The change applies to all future replies and forwards, not to new messages.
Important Note For Outlook 2016, 2019, And Microsoft 365
These steps work for Outlook 2016, 2019, and Microsoft 365 (formerly Office 365). The interface is nearly identical. If you use an older version like Outlook 2010 or 2013, the process is similar, but the buttons might be labeled slightly differently. Still, the core idea remains the same.
How To Change Reply Font In Outlook Web App
If you use Outlook on the web (OWA), the method is different but just as easy. The web version does not have a Stationery button, so you adjust fonts through the settings gear icon.
Step 1: Log Into Outlook Web
Open your browser and go to Outlook.com or your organization’s webmail. Sign in with your credentials.
Step 2: Open Settings
Click the gear icon in the top-right corner. A sidebar appears. At the bottom of that sidebar, click View all Outlook settings.
Step 3: Go To Mail > Compose And Reply
In the Settings window, select Mail from the left menu. Then choose Compose and reply. This section controls fonts for new messages, replies, and forwards.
Step 4: Change The Reply Font
Under the Message format area, you see options for font, size, and color. For replies, the setting is the same as for new messages in the web version. But you can also set a default font for all messages. Choose your preferred font from the dropdown menu. For example, select Segoe UI or Arial. Set the size to 14 or 16 for better readability. Pick a color if you like.
Scroll down a bit. You will see a toggle for Use my default font when replying to messages. Make sure this is turned on. If it is off, Outlook uses the original email’s font, which might not be what you want.
Click Save at the top of the settings window. Your changes take effect immediately. Now, when you reply to an email, your chosen font appears.
Limitations Of The Web Version
The web version does not let you set separate fonts for new messages and replies. The font you choose applies to both. Also, you cannot set a different font for forwards. This is a minor drawback, but for most users, it works fine.
How To Change Reply Font In Outlook For Mac
Outlook for Mac has a slightly different interface. But the steps are still simple. Here is how to adjust the reply font on a Mac.
Step 1: Open Outlook For Mac
Launch the Outlook app on your Mac. Click on Outlook in the top menu bar, then select Preferences.
Step 2: Go To Fonts
In the Preferences window, click on Fonts. This opens the font settings panel.
Step 3: Set Reply Font
You see three sections: New mail messages, Replies and forwards, and Reading and composing plain text. Click the dropdown next to Replies and forwards. Choose a font style, size, and color from the options. You can also click Custom to open a full font picker.
Select your preferred font, like Helvetica or Calibri. Set the size to 14 for comfort. Click OK to save. Close the Preferences window.
Now, every reply and forward uses your chosen font. The change applies globally to all accounts in Outlook for Mac.
How To Change Reply Font In Outlook Mobile App
The Outlook mobile app for iOS and Android does not have a direct setting for reply font. But you can adjust the default font for all messages. Here is how.
Step 1: Open The Outlook App
Launch the app on your phone. Tap your profile picture or the menu icon in the top-left corner.
Step 2: Go To Settings
Scroll down and tap the gear icon for Settings. Then select the email account you want to modify.
Step 3: Change Font Size
Under the account settings, look for Font size or Default font size. You can choose from Small, Medium, Large, or Extra Large. This changes the font size for all messages, including replies. However, you cannot change the font style or color on mobile. The app uses the system font.
If you need more control, use the desktop or web version to set the font. The mobile app respects those settings when you reply from your phone.
How To Change Reply Font For A Single Email
Sometimes you only want to change the font for one reply, not all future ones. This is easy to do manually.
Step 1: Open The Reply Window
Click Reply or Reply All in any email. The compose window opens.
Step 2: Select The Text
Highlight the text you want to change. If you want to change the entire reply, press Ctrl+A (Windows) or Command+A (Mac) to select all.
Step 3: Use The Formatting Toolbar
In the compose window, look for the formatting toolbar. It has options for font, size, bold, italic, color, and more. Click the font dropdown and choose your desired font. Adjust the size and color as needed.
This change applies only to the current reply. It does not affect your default settings. This is useful for special emails where you want a different look.
Troubleshooting Common Issues
Sometimes the font change does not work as expected. Here are common problems and solutions.
Font Change Not Applying To Replies
If you set the font but it does not show in replies, check these points:
- Make sure you clicked the correct button. In desktop Outlook, use the Replying or forwarding messages section, not the New mail messages section.
- Restart Outlook after making changes. Some settings require a restart to take effect.
- Check if the email you are replying to uses HTML format. Plain text emails ignore font settings. You can change the compose format to HTML in Outlook options.
Font Keeps Reverting To Default
If your font keeps changing back, it might be due to a group policy or add-in. Try disabling add-ins one by one to see if one is overriding your settings. Also, check with your IT department if you use a work account.
Web Version Not Saving Font
For Outlook web, clear your browser cache and cookies. Then try again. Also, ensure you clicked Save after changing the font. If the issue persists, try a different browser.
Best Practices For Reply Fonts
Choosing the right font improves readability and professionalism. Here are some tips.
- Use a clean, sans-serif font like Arial, Calibri, or Verdana. These are easy to read on screens.
- Set the size to 12 or 14 points. Smaller fonts strain the eyes, especially on mobile devices.
- Avoid fancy or script fonts. They look unprofessional and are hard to read.
- Use black or dark gray for text color. Bright colors can be distracting.
- Keep the same font for replies and forwards. Consistency looks polished.
How To Change Reply Font In Outlook For Different Accounts
If you have multiple email accounts in Outlook, you can set different fonts for each account. Here is how.
Step 1: Open Account Settings
In desktop Outlook, go to File > Account Settings > Account Settings. Select the account you want to modify and click Change.
Step 2: Set Font Per Account
In the Change Account window, click More Settings. Go to the Outlook Anywhere tab (or similar). Unfortunately, Outlook does not natively support per-account fonts. The font setting is global for all accounts.
But you can use a workaround: create a custom stationery or template for each account. This is advanced and requires some manual work. For most users, a single font for all accounts is fine.
How To Change Reply Font In Outlook Using Registry (Advanced)
For advanced users, you can change the reply font via the Windows Registry. This method gives you more control but requires caution. Incorrect changes can break Outlook.
Step 1: Close Outlook
Make sure Outlook is closed. Press Windows + R, type regedit, and press Enter.
Step 2: Navigate To The Key
Go to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\MailSettings. The version number (16.0) may vary depending on your Outlook version.
Step 3: Modify Font Values
Look for values like ReplyFont or ComposeFont. If they do not exist, create them as string values. Set the value to the font name, size, and attributes. For example: Arial,12,0 for Arial size 12 regular.
This method is not recommended for beginners. Use the graphical interface whenever possible.
Frequently Asked Questions
Can I Change The Reply Font In Outlook Without Changing The New Message Font?
Yes, in the desktop version. In the Stationery and Fonts window, you set separate fonts for new messages and replies. In the web version, the same font applies to both.
Why Does My Reply Font Keep Changing Back To The Original Email’s Font?
This happens if the email is in plain text format. Plain text ignores font settings. Switch to HTML format in Outlook options to force your font.
How Do I Change The Reply Font In Outlook 365?
Outlook 365 uses the same steps as Outlook 2019. Go to File > Options > Mail > Stationery and Fonts. Then set the font under Replying or forwarding messages.
Can I Set A Different Font For Replies To Specific Contacts?
Outlook does not support per-contact fonts natively. You can manually change the font each time you reply to a specific person, or use a third-party add-in.
Does Changing The Reply Font Affect Emails I Send To Others?
Yes, the font you set applies to all replies and forwards you send. It does not change the font in emails you receive, only in your outgoing messages.
Final Thoughts
Changing the reply font in Outlook is a small tweak that makes a big difference in readability and professionalism. Whether you use the desktop app, web version, or Mac, the steps are simple and take less than a minute. Remember to set the font size large enough for comfortable reading, and stick to clean fonts for a polished look. If you run into issues, check your compose format or restart the application. Now you know exactly how to change reply font in outlook, so go ahead and customize your email experience today.