When a critical deadline is approaching, knowing how to flag an email for your manager’s immediate attention can save hours of back-and-forth. Understanding how to mark email as high importance in outlook is a simple skill that can dramatically improve your workplace communication. In this guide, you’ll learn the exact steps for desktop, web, and mobile versions of Outlook, plus tips to use this feature effectively without overdoing it.
Let’s get started with the most common method first.
How To Mark Email As High Importance In Outlook (Desktop Version)
For Windows and Mac users, the desktop app offers the most straightforward way. Follow these steps to ensure your message gets noticed.
Step-By-Step For Outlook On Windows
- Open Outlook and click “New Email” to compose a message.
- In the “Message” tab, look for the “Tags” group.
- Click the red exclamation mark icon labeled “High Importance”.
- You’ll see a red banner appear at the top of your email.
- Complete your email and hit “Send”.
Step-By-Step For Outlook On Mac
- Click “New Email” from the toolbar.
- Go to the “Options” tab in the ribbon.
- Select “High Importance” from the dropdown menu.
- The recipient will see a red exclamation mark next to the subject.
- Type your message and send it.
Thats it. The process is nearly identical across versions, but the icon location may vary slightly.
How To Mark Email As High Importance In Outlook Web App
If you use Outlook in a browser, the steps are just as simple. Here is how to do it in Outlook.com or Office 365.
Using The Ribbon In Outlook Web
- Log in to your Outlook account via browser.
- Click “New message” to open a compose window.
- Locate the three-dot menu “More options” in the toolbar.
- Select “Show from” or look for the “High importance” icon directly.
- Click the red exclamation mark to toggle importance on.
- Write your email and send it.
Some users find the icon hidden under “…” menu. If you don’t see it, click the three dots to expand more options.
Quick Keyboard Shortcut For Web
For faster access, use Alt + H + I on Windows or Ctrl + Shift + I on Mac. This toggles high importance instantly.
How To Mark Email As High Importance In Outlook Mobile App
On your phone or tablet, the process is slightly different but still intuitive. Here is the guide for iOS and Android.
On IPhone And IPad
- Open the Outlook app and tap the compose icon (pencil or plus).
- Tap the three-dot menu in the top right corner.
- Select “High Importance” from the list.
- A red banner will appear at the top of your email.
- Finish your message and tap the send arrow.
On Android Devices
- Launch Outlook and tap the new email button.
- Tap the three vertical dots in the upper right.
- Choose “High Importance” from the dropdown.
- You’ll see a red exclamation icon appear.
- Complete your email and send it.
Mobile apps don’t always show the importance icon clearly, so check the banner before sending.
What Happens When You Mark An Email As High Importance?
When you set high importance, Outlook adds a red exclamation mark next to the subject line. The recipient sees this in their inbox list. In some versions, the email also appears with a red banner at the top. This visual cue tells the reader to prioritize your message.
However, it does not change delivery speed or bypass spam filters. It only changes the visual presentation.
How Recipients See High Importance Emails
- In inbox list: A red exclamation icon appears before the subject.
- In reading pane: A red banner says “High Importance” at the top.
- In notifications: Some mobile devices show a special alert.
- In search results: The icon remains visible for quick identification.
Remember that the recipient can still ignore it if they choose. The feature is a suggestion, not a command.
When Should You Use High Importance?
Using this feature too often can backfire. People may start ignoring your red exclamation marks. Reserve it for truly urgent situations.
Appropriate Scenarios
- Project deadlines that are due within hours.
- Urgent requests from your manager or client.
- System outages or security alerts.
- Time-sensitive approvals needed before a meeting.
- Critical updates that affect multiple team members.
When To Avoid High Importance
- Routine status updates or weekly reports.
- Non-urgent questions or requests for feedback.
- Personal messages or social invitations.
- Emails that can wait until the next business day.
- Mass emails to large distribution lists.
Overusing high importance is like crying wolf. Your colleagues will stop taking it seriously.
How To Combine High Importance With Other Features
Outlook offers several tools that work well with importance settings. Use them together for maximum effect.
Using Follow-Up Flags
Add a follow-up flag to remind the recipient to act. Go to the “Tags” group and select “Flag for Follow Up”. Choose a due date and time. This pairs nicely with high importance.
Setting A Reminder
You can also set a reminder for yourself. Click “Follow Up” and select “Add Reminder”. This ensures you don’t forget to check for a response.
Using Delivery And Read Receipts
For truly critical emails, request a delivery receipt. Go to “Options” and check “Request a delivery receipt”. This confirms the email reached the recipient’s inbox. Combine with high importance for full visibility.
Using Categories
Assign a color category to urgent emails. Right-click the email and choose “Categorize”. Red categories work well with high importance. This helps both you and the recipient organize priorities.
Common Mistakes And How To Avoid Them
Even experienced users make errors with importance settings. Here are the most frequent pitfalls.
Mistake 1: Forgetting To Set Importance Before Sending
You compose a long email, then hit send without marking it. To fix this, always check the importance icon before clicking send. Make it a habit.
Mistake 2: Setting Importance After Composing
You can set importance at any point before sending. Just click the icon in the compose window. It doesn’t matter when you do it.
Mistake 3: Using High Importance For Every Email
This dilutes the meaning. Reserve it for truly urgent messages. Your colleagues will appreciate the distinction.
Mistake 4: Not Checking Recipient’s Settings
Some users have rules that automatically move high importance emails to a folder. Ask your team if they use such filters. You may need to adjust your approach.
Mistake 5: Confusing Importance With Sensitivity
High importance is not the same as confidential. Sensitivity settings control who can view the email. Importance only affects visual cues.
How To Remove High Importance From An Email
Sometimes you change your mind after setting importance. Removing it is easy.
Before Sending
- In the compose window, click the high importance icon again.
- The red banner will disappear.
- Continue editing or send the email without importance.
After Sending (If Possible)
Outlook does not allow you to recall importance after sending. You can try recalling the message if it’s unread. Go to “Sent Items”, open the email, and select “Recall This Message”. Then resend without importance.
Recall only works if both you and the recipient use Exchange or Microsoft 365. It is not guaranteed.
Advanced Tips For Power Users
These techniques help you automate or customize importance settings.
Create A Rule To Auto-Mark Emails
You can set up rules that automatically apply high importance based on conditions. For example, emails from your boss with “urgent” in the subject get marked automatically.
- Go to “File” > “Manage Rules & Alerts”.
- Click “New Rule”.
- Choose “Apply rule on messages I receive”.
- Select conditions like “from specific people” or “with specific words in the subject”.
- Choose action “mark it as high importance”.
- Finish the rule and apply it.
Use Quick Steps For One-Click Importance
Quick Steps let you combine multiple actions. Create one that marks importance, flags for follow-up, and moves to a folder.
- Go to “Home” > “Quick Steps” > “Create New”.
- Name it “Urgent Reply Needed”.
- Add actions: “Mark as High Importance” and “Flag Message”.
- Assign a shortcut key like Ctrl+Shift+1.
- Use it for future emails.
Customize The Ribbon For Easier Access
If you use importance frequently, add it to your Quick Access Toolbar. Right-click the high importance icon and select “Add to Quick Access Toolbar”. It will appear at the top of your window.
How To Check If Your Email Was Marked Correctly
Before sending, verify that the importance setting is active. Look for these signs.
Visual Indicators In Compose Window
- Red banner at the top of the email.
- Red exclamation icon in the toolbar.
- Subject line may show a red icon in some versions.
In Sent Items Folder
After sending, open your “Sent Items” folder. The email should display a red exclamation icon next to the subject. If not, you may have forgotten to set it.
Ask A Colleague To Confirm
For important messages, ask a trusted coworker if they received the importance indicator. This is especially useful when testing new settings.
Frequently Asked Questions
Can I Mark An Email As High Importance After Sending It?
No, you cannot change importance after sending. You must recall the message and resend it with the correct setting. Recall only works within the same organization and if the email is unread.
Does High Importance Affect Email Delivery Speed?
No. Importance is purely a visual indicator. It does not change how fast the email is delivered or bypass spam filters. It only adds a red exclamation mark.
How Do I Mark An Email As Low Importance In Outlook?
Click the blue down arrow icon next to the high importance icon. This adds a blue arrow indicating low importance. Use it for non-urgent messages like newsletters or FYIs.
Why Don’t I See The High Importance Icon In My Outlook?
The icon may be hidden in the ribbon. Click the “…” menu to expand options. On mobile, look under the three-dot menu. If still missing, customize your ribbon to add it.
Can I Set A Default Importance For All Outgoing Emails?
Yes, you can change the default. Go to “File” > “Options” > “Mail”. Under “Send messages”, set the default importance level. Choose high, normal, or low. This applies to all new emails.
Final Thoughts On Using High Importance Effectively
Mastering how to mark email as high importance in outlook is about more than clicking an icon. It’s about communication etiquette. Use it sparingly and only when truly needed. Your colleagues will respect your urgency signals when they are rare and justified.
Combine importance with clear subject lines and concise writing. A well-crafted email with high importance is far more effective than a vague one. Always double-check before sending, especially on mobile where the icon is easy to miss.
Practice these steps until they become second nature. You’ll save time, reduce misunderstandings, and improve your professional reputation. Start by marking your next urgent email correctly and see the difference it makes.