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Outlook: change the font (style, size, and color) of unread group header

Change the font of unread group header, and make your messages list attract attention more easily. Here we will show you how to change the font style, size, and color of unread group header of mail list in Microsoft Outlook.

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The following steps will help you quickly change the font style, font size, and font color of unread group header.

Step 1: Shift to the Mail view with clicking the Mail in the Navigation Pane.

Step 2: Select the folder that you will change the font of unread group headers in it.

Step 3: Open the Advanced View Settings: compact (or Custom View: Messages) dialog box:

  1. In Outlook 2010 and 2013, please click the View Settings button in the Current View group on the View tab.
  2. In Outlook 2007, please click the View > Current View > Customize Current View.

Step 4: In the popping up dialog box, please click the Conditional Formatting button (or Automatic Formatting in Outlook 2007).

Step 5: In the Conditional Formatting dialog box:

  1. Uncheck all options except the Unread group headers option in the Rules for this view: box
  2. Click the Font button.

Step 6: In the Font dialog box:

  • (1) Select a font face in the Font: box. In our case, we select the Segoe Print.
  • (2) Select a font style in the Font style: box. In our case, we select the Bold Oblique.
  • (3) Select a font size in the Size: box. In our case, we select the Bigger.
  • (4) Select one font color in the Color: box. In our case we select the red color.

Step 7: Click all OK buttons in each dialog box.

Go back to the mail interface of Microsoft Outlook, and you will see that the unread group headers display as red Segoe Print font, and the font is Bold Oblique and Bigger. See the following screen shot:

Note: This set is only valid for the select folder. Applying the changed unread group header for all mail folders in your Microsoft Outlook, please click the Change View > Apply current view to other mail folder on the View tab.


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  • To post as a guest, your comment is unpublished.
    casper · 1 years ago
    Thanks it was helpful
  • To post as a guest, your comment is unpublished.
    Kamalakar · 2 years ago
    Thaxs it wil more helpful to me,
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    Shripad Lale · 2 years ago
    Is there any way to give conditional formatting for READ Group headers? I would like my group headers to be of a different font, but I want them that way even if they are for read mails. Like MS Word, a header should have a different (slightly bigger/different) font, irrespective of its read status.
    Any way of doing that?
    Thanks in advance!
    • To post as a guest, your comment is unpublished.
      THG · 2 years ago
      Hey did you ever figure this out? I also want my READ group headers to display differently.
      • To post as a guest, your comment is unpublished.
        Jay · 2 years ago
        You need to get into the conditional formatting dialog and "Add" a new formatting, then set its condition to fit everything (so do not change anything, it fits all by default) or to fit read messages (change "Unread" to "Read" under "More options").
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    Kaye · 4 years ago
    Great Stuff. Thank you very very much
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    Dave · 4 years ago
    Thanks, my challenge is that in Outlook 2007 when in "Arrange by Conversation" mode, this will only change the color of the group font. It won't impact the size or font type.

    In other "arrangements" it works as you describe. Any thoughts?