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Fix Outlook on the Web Crashing When Sending or Replying
Question details
The user experiences unexpected crashes or closures when trying to send or reply to emails using Outlook on the web, leading to lost unsent messages.
- Product
- Outlook on the Web
- Device & OS
- not provided
- Scenario
- Sending or replying to emails via a web browser.
- Observed behavior
- The web application crashes or closes unexpectedly, resulting in the loss of unsent messages.
Before proceeding with troubleshooting, draft your important email replies in a local text editor to avoid losing your work if the browser crashes again.
Clear Browser Cache and Cookies
Clearing outdated or corrupted browser data often resolves web application crashes and performance issues.
Corrupted cached files or outdated site cookies can cause web applications like Outlook to freeze or crash during complex actions such as loading the reply interface.
Open your browser settings menu (usually found by clicking the three dots or lines in the top-right corner of the window).
Find and click on the 'Privacy and Security' or 'History' section in the settings menu.
Select 'Clear browsing data' and ensure that 'Cookies and other site data' and 'Cached images and files' are checked.
Click 'Clear data', close all browser windows completely, and reopen the browser before logging back into Outlook on the web.
Test in a Private or Incognito Window
Running the browser in private mode disables most extensions that might be interfering with Outlook on the web.
Switch to a Different Web Browser
Using a different browser helps determine if the issue is isolated to your current browser's specific configuration or installation.
Experience a Stable, Lightweight Office Suite with WPS Office
While you troubleshoot your Outlook web browser issues, you can rely on WPS Office for all your offline document creation needs. It is a free, lightweight, and highly compatible alternative to Microsoft Office, allowing you to seamlessly edit Word, Excel, and PowerPoint files without unexpected software crashes.
- 1. Visit the official website: Navigate to the official WPS Office website on your web browser.
- 2. Download the installer: Click the 'Download WPS Office Free' button suitable for your operating system.
- 3. Install and open: Run the downloaded installer file, follow the quick setup instructions, and seamlessly open your existing Microsoft Office files.
Frequently Asked Questions
Why does Outlook on the web crash only when I hit reply?
This often happens due to a corrupted browser cache, outdated browser versions, or conflicting browser extensions (such as ad blockers or grammar checkers) that interfere with the scripts used specifically in the Outlook reply interface.
Will I lose my drafted email if Outlook on the web crashes?
Outlook on the web normally auto-saves drafts periodically. However, if the browser crashes suddenly while you are actively typing, the most recent unsaved changes might be lost. You can recover auto-saved work by checking your Drafts folder after logging back in.
How do I know which browser extension is causing the crash?
You can isolate the issue by disabling all your browser extensions, then re-enabling them one by one. Test Outlook's reply function after enabling each extension. Once the crash reoccurs, the last enabled extension is the cause.
Does Outlook on the web support all web browsers?
Outlook on the web is optimized for modern web browsers like Microsoft Edge, Google Chrome, Mozilla Firefox, and Apple Safari. Using outdated or unsupported browsers may lead to unexpected instability, crashing, or missing features.
