Fix Adobe Acrobat DC Cannot Send Email Attachments Through Outlook
Question details
The user is unable to send PDF attachments directly from Adobe Acrobat DC using Microsoft Outlook, encountering an email error despite default configurations.

- Product
- Adobe Acrobat DC, Microsoft Outlook
- Device & OS
- not provided
- Scenario
- Attempting to share or email a PDF document directly from the Adobe Acrobat DC interface via the Outlook desktop application.
- Observed behavior
- Acrobat displays an email error and fails to attach the document to an Outlook draft, even after repairing Office and setting Outlook as the default mail client.
Ensure that your Microsoft Outlook application is fully updated, currently open, and actively logged into your email account before attempting to share files from Acrobat.
Configure Outlook as the Default Mail Client in Windows and Acrobat
Ensuring Outlook is explicitly set as the default email application across both your operating system and Adobe Acrobat preferences usually resolves the communication error.
Even if Outlook appears to be the default application, a mismatch in Windows system settings or Adobe's internal email preferences can block the attachment process.
Open Windows Settings, navigate to 'Apps' > 'Default apps', select 'Email', and explicitly choose Microsoft Outlook from the list.
Open Adobe Acrobat DC. Click 'Edit' in the top menu, select 'Preferences', and choose 'Email Accounts' from the left sidebar. Ensure Microsoft Outlook is listed and marked as the 'Default' email application.
Completely close both Adobe Acrobat and Microsoft Outlook, then relaunch them to ensure the new default settings are applied correctly.

Verify Compatibility Between Acrobat DC and Microsoft 365
Older versions of Acrobat DC may experience compatibility issues with newer, frequently updated versions of Microsoft 365 Outlook.
Use WPS PDF to Send Email Attachments Seamlessly
Avoid Adobe compatibility errors by using WPS Office. Its built-in PDF reader provides a lightweight, reliable way to view, edit, and directly email your PDF files without complex configuration.
- 1. Open your PDF in WPS: Launch WPS Office and open the PDF document you wish to share.
- 2. Access the Share feature: Click on the 'Menu' button and navigate to 'Share' or click the 'Email' icon located directly on the top toolbar.
- 3. Send via Email: Select 'Email' to automatically draft a new message in your default mail client with the PDF attached securely.

Frequently Asked Questions
Why does Adobe Acrobat say 'no default mail client' when Outlook is installed?
This error occurs if Outlook is installed but not recognized as the default mail application in your Windows Default Apps settings, or if Acrobat's internal email preferences are misconfigured.
Can I use webmail like Gmail instead of Outlook to send PDFs from Acrobat?
Yes, in Adobe Acrobat you can go to Edit > Preferences > Email Accounts and add your webmail account directly. This allows you to send PDFs using Gmail or Yahoo without needing a desktop client like Outlook.
Does repairing Microsoft Office fix the Acrobat email attachment error?
While repairing Microsoft Office can fix general Outlook registry issues, it may not resolve the Acrobat error if the root cause is a version incompatibility between an older Adobe release and newer Microsoft 365 updates.




