How to Fix Outlook Mobile Crashing When Attaching a PDF File
Question details
The user experiences an app crash and connection error 10060 in the Outlook mobile app when attempting to attach a PDF file to an email.

- Product
- Outlook Mobile
- Device & OS
- not provided
- Scenario
- Composing an email and attempting to attach a PDF document from local device storage.
- Observed behavior
- The Outlook application displays connection error 10060 and abruptly shuts down, despite other document-related functions working normally.
Ensure your mobile device has a stable internet connection and verify that the PDF file is not corrupted by opening it in a standard PDF reader before attempting to attach it.
Update Outlook and Verify App Permissions
Outdated app versions or missing storage permissions often trigger connection errors and cause crashes during file selection.
Connection error 10060 typically indicates that the application is failing to communicate properly with your device's local storage or the network. Ensuring Outlook has the correct permissions and is fully updated usually resolves this issue.
Visit the Google Play Store or Apple App Store, search for Microsoft Outlook, and tap 'Update' if a newer version is available.
Navigate to your device's Settings, select 'Apps' or 'App Management', and find the Outlook application.
Tap on 'Permissions' and ensure that 'Files and Media' or 'Storage' access is fully granted to the app.
Open Outlook, start a new email, and use the native paperclip icon to select the PDF directly from your device storage.

Clear Outlook App Cache
Clearing the temporary cache can fix internal glitches that cause the app to shut down when opening the file picker.
Contact Microsoft Outlook Support
If the issue persists, the problem likely lies within the Outlook application's server connection and requires official technical support.
Share PDFs Directly to Email using WPS Office
If the Outlook app crashes when manually searching for attachments, bypass the issue by opening your PDF in WPS Office and using its built-in sharing feature. WPS Office acts as a lightweight, highly compatible tool for handling and sending your documents effortlessly.
- 1. Open PDF in WPS: Launch WPS Office on your mobile device and open the PDF file you wish to send.
- 2. Tap the Share Icon: Locate and tap the 'Share' button at the bottom or top menu of the viewing screen.
- 3. Select Email: Choose the 'Email' option from the sharing menu to automatically generate an email draft with the PDF already attached.

Frequently Asked Questions
What does connection error 10060 mean in Outlook mobile?
Error 10060 is a network timeout error. It usually occurs when the app fails to establish a stable connection with the server, which can be caused by network instability, outdated software, or restrictive app permissions.
Why does my email app crash only when attaching PDFs?
The app might crash if it attempts to generate a preview of a large or corrupted PDF file, or if it lacks the necessary storage permissions to access the specific folder where the PDF is saved on your device.
Can I use Adobe Acrobat to fix this Outlook issue?
No, this crash is specific to the Microsoft Outlook mobile app's file picker and network connection. As advised by official support, you must troubleshoot the Outlook app itself or use an alternative sharing method.




