How To Change From Plain Text To Html In Outlook When Replying – Reply Format Conversion Steps

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Replying to an email in plain text when you need HTML formatting is a common Outlook frustration. Knowing how to change from plain text to html in outlook when replying can save you time and ensure your messages look professional. This guide walks you through every method, from quick fixes to permanent settings.

Plain text emails strip away all formatting—no bold, no colors, no images. But sometimes you need to add a signature, insert a table, or emphasize a point. Outlook defaults to plain text for replies in certain situations, but you can switch it. Let’s get into the details.

Why Outlook Replies In Plain Text

Outlook might default to plain text replies for a few reasons. The original email could be in plain text, or your account settings might force it. Understanding the cause helps you choose the right fix.

  • Original email format: If the sender used plain text, Outlook often replies in the same format.
  • Account settings: Some email accounts (like POP3) are set to plain text by default.
  • Security policies: Your IT department might enforce plain text for replies.
  • Accidental change: You might have switched the format without realizing it.

No matter the reason, you can override it. The steps are simple once you know where to look.

How To Change From Plain Text To Html In Outlook When Replying

This is the core method you need. When you’re in the middle of replying to an email and see plain text, here’s how to switch to HTML instantly.

  1. Open the email you want to reply to.
  2. Click “Reply” or “Reply All” in the ribbon.
  3. In the new message window, look for the “Format Text” tab at the top.
  4. Click the “Format Text” tab.
  5. In the “Format” group, you’ll see three options: “HTML,” “Plain Text,” and “Rich Text.”
  6. Select “HTML.”

That’s it. Your reply now supports formatting. You can add bold text, change fonts, insert images, and more. If the option is grayed out, check if the original email is in plain text—Outlook might block the switch for security reasons.

Sometimes the “Format Text” tab doesn’t show the HTML option immediately. In that case, click anywhere inside the message body first. The ribbon updates to show all available options.

What If The Option Is Missing?

If you don’t see the HTML option, your Outlook version might be different. For Outlook 2016, 2019, and Microsoft 365, the steps above work. For older versions like Outlook 2010, the tab is called “Options” instead of “Format Text.”

  • In Outlook 2010: Click “Options” tab, then “HTML” in the format group.
  • In Outlook for Mac: Go to “Format” menu, select “HTML.”
  • In Outlook Web App: Click the three dots (more options) in the toolbar, then “Switch to HTML.”

If you still can’t find it, your account might have restrictions. Contact your IT admin to check if HTML is disabled.

Changing The Default Reply Format Permanently

Switching every reply manually gets old. You can set Outlook to always reply in HTML. This saves time and prevents accidental plain text replies.

  1. Open Outlook and go to “File” in the top-left corner.
  2. Click “Options” (near the bottom of the menu).
  3. In the Outlook Options window, select “Mail” from the left sidebar.
  4. Scroll down to the “Compose messages” section.
  5. Look for “Compose messages in this format:” and choose “HTML” from the dropdown.
  6. Click “OK” to save.

This changes the default for all new messages, replies, and forwards. But be aware: if the original email is plain text, Outlook might still revert to plain text for replies. To override that, you need one more setting.

Forcing HTML For Replies To Plain Text Emails

Outlook has a hidden setting that controls this behavior. You can force it to use HTML even when replying to plain text messages.

  1. Go to “File” > “Options” > “Mail.”
  2. Under “Compose messages,” click “Editor Options.”
  3. In the Editor Options window, click “Advanced.”
  4. Scroll to “Cut, copy, and paste.”
  5. Set all four dropdowns to “Match destination formatting” or “Keep source formatting.”
  6. Click “OK” twice to save.

This isn’t a direct setting for HTML, but it reduces the chance of Outlook stripping formatting. For a more reliable fix, use the manual switch method above.

Using Keyboard Shortcuts To Switch Formats

If you prefer keyboard shortcuts, there’s no direct key to switch to HTML. But you can create a quick macro to automate it. This is for advanced users only.

  1. Press “Alt + F11” to open the VBA editor.
  2. Go to “Insert” > “Module.”
  3. Paste this code: 
    Sub SwitchToHTML()
    Dim objMail As Outlook.MailItem
    Set objMail = Application.ActiveInspector.CurrentItem
    objMail.BodyFormat = olFormatHTML
    objMail.Display
End Sub
  4. Close the editor and save.
  5. Assign the macro to a button or shortcut key via “File” > “Options” > “Customize Ribbon.”

Now you can run the macro to switch the current reply to HTML. This is a power user trick, but it works perfectly.

Common Problems And Fixes

Even after switching, you might run into issues. Here are the most common ones and how to solve them.

HTML Option Is Grayed Out

This happens when the original email is in plain text and Outlook blocks the change. Try closing the reply and reopening it. If that fails, forward the email instead of replying—forwarding often allows HTML.

Formatting Disappears After Sending

If your HTML formatting looks fine in the compose window but disappears after sending, the recipient’s email client might not support HTML. Ask them to check their settings. Also, ensure you’re not using unsupported fonts or colors.

Images Don’t Show Up

When you insert images in an HTML reply, they might not display for the recipient. This is usually a security block. Ask the recipient to add you to their safe senders list, or use inline images instead of attachments.

How To Check If Your Reply Is In HTML

Before sending, you can verify the format. In the compose window, look at the ribbon. If the “HTML” button is highlighted (usually in a different color), you’re in HTML mode. If “Plain Text” is highlighted, you’re not.

Another clue: the formatting toolbar (bold, italic, font size) is visible in HTML mode. In plain text, it’s hidden or grayed out.

Why You Should Use HTML For Replies

HTML formatting makes your emails more readable and professional. Here’s why it matters:

  • Better readability: Use bold for key points, bullet lists for clarity.
  • Professional appearance: Add your signature with logos and links.
  • Visual hierarchy: Headings and colors guide the reader’s eye.
  • Embedded images: Share screenshots or graphics directly in the email.

Plain text is fine for short, informal replies. But for business communication, HTML is almost always better.

Alternatives To Switching Format Manually

If you’re tired of switching formats, consider these alternatives:

  • Use a template: Create an HTML email template in Outlook and reuse it.
  • Install an add-in: Tools like “HTML Email” add-ons automate formatting.
  • Change account type: If you use POP3, switch to IMAP for better HTML support.

These options require setup but can save time in the long run.

Frequently Asked Questions

Can I Switch To HTML After Typing A Plain Text Reply?

Yes. Even if you’ve typed a long reply in plain text, you can switch to HTML mid-compose. Just click the “Format Text” tab and select “HTML.” Your existing text will be preserved, but you’ll lose any plain text formatting (like line breaks).

Why Does Outlook Keep Reverting To Plain Text?

This usually happens because the original email is plain text. Outlook tries to match the format. Change the default compose format to HTML in settings, and manually switch if needed.

Does Switching To HTML Affect Email Size?

Yes, HTML emails are larger than plain text because they include formatting code. For most emails, the difference is negligible. But if you send large images, the file size can increase significantly.

Can I Set HTML As Default For Replies Only?

Outlook doesn’t have a separate setting for replies vs. new messages. Changing the default format affects all compose actions. But you can use a macro to apply HTML only to replies.

What If The Recipient Can’t See HTML Formatting?

Some email clients block HTML by default. Ask the recipient to enable “display images” or add you to their safe list. If they still can’t see it, consider sending a plain text version as a backup.

Final Tips For Smooth HTML Replies

Mastering how to change from plain text to html in outlook when replying takes practice. Here are a few extra tips:

  • Always check the format before hitting send. A quick glance at the ribbon saves embarrasment.
  • Use standard fonts like Arial or Calibri—they display well across devices.
  • Test your emails by sending a copy to yourself first.
  • Keep your HTML simple. Too many colors or fonts can look messy.

With these steps, you’ll never be stuck in plain text again. Outlook gives you the tools; you just need to know where to click. Whether you’re replying to a client, a colleague, or a friend, HTML formatting makes your message stand out.

Remember, the key is the “Format Text” tab. Once you memorize that, the whole process becomes second nature. If you run into trouble, revisit the steps above or check your account settings. Most issues are easy to fix.

Now go ahead and reply with confidence. Your emails will look better, and your recipients will thank you for the clarity. Happy emailing!