Outlook conditional formatting: color-code or highlight emails, calendar and tasks

What is conditional formatting in Outlook?

Outlook conditional formatting allows you to automatically apply specific formatting to emails, tasks and calendar items based on predefined rules or conditions. This functionality goes beyond mere aesthetics - it serves as a visual aid, providing instant insights into the importance, urgency, or nature of each item.

With conditional formatting, you can set up rules that determine how emails, task and calendar entries should be formatted based on various criteria, such as sender, subject, importance, category, or even specific words or phrases. Once these rules are established, Outlook automatically applies the specified formatting whenever an item meets the defined criteria.

For example, urgent emails from a particular sender can be highlighted in red, while messages related to a specific project can be marked with another distinctive color. Likewise, in the calendar, you can assign different colors to appointments that differ in importance, organizer, or attendees to easily recognize significant events and monitor their agendas.

Overall, conditional formatting in Outlook offers visual cues that help you prioritize what matters most, sort everything out, and make good use of your time.

Default conditional formats in Outlook

Microsoft Outlook comes pre-equipped with several color-coding options for emails and tasks, which you might already be using without even realizing it. Here's a rundown of some default formats:

• Unread - messages that you haven't read yet show up in a bold and blue font.
• Not Sent - emails that have never been sent are displayed in italics.
• Expired - messages past their expiration date and completed tasks appear in a grey and strikethrough font.
• Overdue - messages and tasks that are past a defined due date are highlighted in red.

To view the list of conditional formatting rules that are already in your Outlook, do the following:

1. Choose the target folder, whether it's emails, tasks, or calendars.
2. Head to the View tab and click View Settings in the Current View group.
3. In the Advanced View Settings dialog box, click Conditional Formatting.

   You'll see a set of default rules, like the ones for Outlook emails shown here:

Any custom rules you've created for this specific view will also be displayed in this dialog box.

How to color code Outlook emails using conditional formatting

To color code your emails the way you want, you can create a custom conditional formatting rule by following these steps:

1. Start by choosing the folder where you want to apply the rule, such as Inbox.
2. On the View tab, in the Current View group, click View Settings.
3. In the Advanced View Settings dialog box, click Conditional Formatting.
4. Click the Add button to start creating a new rule.
5. In the Name box, type a descriptive name for your rule.
6. Click the Font… button to set up formatting for the rule.
7. In the Font dialog box, select your preferred font color, size, and style, then confirm by clicking OK.
8. Click Condition… to specify the criteria under which the rule will be applied.
9. In the Filter dialog box, you'll be setting the conditions for the rule. There are three tabs here - Messages, More Choices, and Advanced - each offering a variety of options. On the Messages tab, you'll find the most commonly used criteria such as the sender, recipient, subject or message body keywords.
10. Click OK three times to close all dialogs and apply the newly created formatting rule.

Done! Your rule is applied immediately, and your inbox is now color-coded according to your specified criteria.

For instance, emails from a specific sender containing the word "important" in the subject line are highlighted in maroon, making them easily recognizable amidst your other messages.

How to color code Outlook calendar

If you wish to enhance the organization and clarity of your calendars, you can highlight your meetings and appointments in different colors based on various criteria such as sender, location, attendees, or importance. Here's how to do it:

1. Select your Calendar folder in Outlook.
2. Go to the View tab and click View Settings in the Current View group.
3. In the dialog box that appears, choose Conditional Formatting.
4. In the Conditional Formatting dialog box, click Add to make a new rule.
5. Name your rule and pick a color from the Color dropdown.
6. Click the Condition… button.
7. In the Filter dialog box, you can choose from various fields and criteria. For example, to highlight meeting requests from your admin or supervisor, add their email address to the Organize By box.
8. For additional options, switch to the More Choices tab. Here, you can set more conditions, such as highlighting appointments and meetings with high importance.
9. For even more flexibility, go to the Advanced tab. Then, click on Field > All Appointment Fields and choose the relevant item. For example, to highlight appointments and meetings where you are a required attendee, select All Appointment Fields > Required Attendees.
10. In the Value box, type your own name or the name of any other person to whom the criteria should apply, and click Add to List.
11. If needed, add more criteria in the same manner. Once done, click OK three times to close all the dialogs and save your rule.

In this example, we've created a formatting rule that highlights calendar items in the teal color when three conditions are met: the appointment or meeting is organized by admin, has high importance, and you (or the specified person) are a required attendee.

Conditional formatting for Outlook tasks

Similar to emails, Outlook offers predefined conditional formatting rules for tasks to help you manage your to-do list more effectively:

• Complete tasks - appear in grey with a strikethrough to indicate that they've been completed.
• Overdue tasks – are highlighted in red to draw attention to tasks that are past their due date.
• Unread tasks - appear in bold to signify tasks that you haven't reviewed yet.

If you're looking to customize the appearance of your tasks for a more visually appealing look, you can add custom conditional formatting rules. The process and options for color-coding tasks are identical to those for emails. Here's a quick rundown of the steps:

1. Select the tasks folder in your Outlook.
2. On the View tab, in the Current View group, click View Settings.
3. In the dialog box that appears, choose Conditional Formatting.
4. Click the Add button to make a new rule.
5. Give your rule a name and click Font… to choose the desired formatting.
6. Click Condition… to open the Filter dialog where you configure the criteria for your rule.
7. Click OK three times to close all dialog boxes and apply the new rule.

For instance, to highlight high-priority tasks that haven't been started yet, you can set up a rule as follows:

• First, on the More Choices tab of the Filter dialog, set the importance to "high".
• Then, switch to the Advanced tab and select Field > All Task Fields > Status.
• Finally, choose "not started" for the status and add the statement to the list.

As a result, your high-priority tasks that are yet to be started will be visually distinct, making it easier for you to prioritize and manage your workload.

Examples of Outlook conditional formatting

Now that you've grasped the basics of conditional formatting in Outlook, let's explore some practical examples of color-coding emails.

How to color code emails sent only to you

If you're seeking to prioritize messages sent exclusively to you over those received from distribution lists or where you're included on the Cc or Bcc fields, you can highlight such messages by performing these steps:

1. Select Inbox or any other relevant folder.
2. Add a new rule and click the Condition… button.
3. In the Filter dialog box, on the Messages tab, select the Where I am checkbox, and then choose "the only person on the To line" for the criteria.

This way, Outlook will apply the chosen format to any messages that only you receive, helping you in promptly responding to communications that are meant just for you.

How to highlight emails larger than 1MB with attachments

To visually identify large emails with attachments, carry out these steps:

1. Select Inbox or any other folder where you want the rule to apply.
2. Add a new rule and click the Condition… button.
3. In the Filter dialog, switch to the More Choices tab.
4. Select the Only items with checkbox, and from the dropdown list choose "one or more attachments".
5. In the Size dropdown list, pick "greater than", and then type 1024 in the box (1024 kilobytes is 1MB).

Once the rule is created, Outlook will automatically apply the specified formatting to any messages larger than 1MB with attachments, making them visually distinct in your inbox.

How to manage, edit and delete conditional formats in Outlook

To view, modify, or delete conditional formatting rules set for a specific folder in Outlook, follow these steps:

1. Select the folder of interest. That could be one of your mail folders, tasks or calendars.
2. Open the Conditional Formatting dialog box: View tab > View Settings > Conditional Formatting.
3. Select the rule you want to manage and perform one of these actions:
   • Change formatting - click Font, and then choose the color, style, size, and effects you want to use for the rule.
   • Modify criteria - click Condition to edit the criteria for the selected rule.
   • Sort - use the Move Up and Move Down buttons to change the priority in which the rules are applied.
   • Turn off - to temporarily disable a rule, clear the checkbox next to it.
   • Delete - to permanently remove a rule, click the Delete button.
   

Outlook color-coding tips

Understanding the inner mechanics of conditional formatting in Outlook can improve the consistency and efficiency of your email handling. Here are some helpful tips to help you get the most out of it and avoid any surprises.