How to Fix Outlook Font Size Change in Reply Mode

Problem Summary

When you are replying to an email you received in Outlook, you may find that the size of the font in the message you are typing is so small that you can barely see what you have typed, even though the font size in your tool bar has not changed.

This has happened to me when the size of my font is at 11 in the tool bar, but any message I type when replying to an email is like font size 6. Many people have tried increasing their Outlook font size in reply mode up to size 18 or 20, just so they can read what they are typing, but only to find out to their dismay that when they send the message without reducing the font back to the normal setting, the recipients of their reply get the message in VERY large size 18 or 20 font!

The fix for Outlook font size when it changes to very small size when you are replying to an email is really very simple, and I have summarized it below. The Zoom factor in the Reply Mode is what you need to increase to 100%.

The Fix for Outlook Font Size Change in Reply Mode

In Outlook Reply Mode:

1. Hold down the “Ctrl” key on your keyboard
2. If you are using a mouse with a scroll wheel, scroll the wheel up or down to increase the Zoom to 100%
3. Or, while holding the “Ctrl” key down, pinch the mouse pad on your laptop in or out to get 100% Zoom factor.

This should fix your font changing to very small size when you are replying to an email in Outlook.  This fix also works if your Outlook font in Reply Mode has increased, just reduced it to 100% with the same steps.

The key combination you may have to press to get 100% font Zoom factor may differ on your laptop. I have tested this fix on a Dell laptop running Windows 10.

If you find that a different key/Mouse combination works for you, please share it here so others can benefit.