Fix PDF Form Email Button Not Opening Outlook in Acrobat DC
Question details
The user is unable to use an embedded email button within a PDF form to automatically attach the file and open Outlook after upgrading to Acrobat Pro DC.

- Product
- Adobe Acrobat Pro DC
- Device & OS
- not provided
- Scenario
- Clicking a built-in submit or email button on a PDF form to trigger an email draft in Microsoft Outlook.
- Observed behavior
- The button fails to launch Outlook, and Acrobat displays a message stating it does not allow the connection to the specified email addresses.
Ensure that your Microsoft Outlook application is fully updated, currently running in the background, and set as the default email client in your operating system settings.
Configure the Default Email Account in Acrobat Preferences
Setting Outlook as the explicitly preferred email account within Acrobat's internal settings usually resolves routing and connection blocks.
Acrobat DC introduces stricter security and different default handling for email attachments compared to older versions like Acrobat XI.
By manually configuring your email account preferences, you grant Acrobat the necessary permissions to communicate with Microsoft Outlook directly.
Launch Adobe Acrobat Pro DC and navigate to Edit > Preferences in the top menu bar, or press Ctrl+K on your keyboard.
In the left-hand pane of the Preferences window, select 'Email Accounts' from the list of categories.
Select your Microsoft Outlook account from the list. If it is not listed, click 'Add Account' to set it up. Once selected, click the 'Make Default' button.
Click 'OK' to save your changes. Restart Adobe Acrobat DC, open your PDF form, and click the email button again to verify the connection.

Edit and Share PDFs Seamlessly with WPS Office
If you are tired of complex troubleshooting and expensive Adobe or Microsoft subscriptions, WPS Office offers a free, lightweight, and highly compatible alternative. Its built-in PDF editor lets you easily fill forms, sign documents, and share them directly via your default email client without configuration errors.
- 1. Download and Install: Get WPS Office for free from the official website and follow the quick installation process.
- 2. Open Your PDF Form: Launch WPS PDF and open your form to seamlessly view, fill out, and edit the document.
- 3. Share via Email: Click the 'Share' or 'Email' icon in the top toolbar to automatically attach the PDF to a new draft in your default email client.

Frequently Asked Questions
Why did the PDF email button work in Acrobat XI but not in Acrobat DC?
Acrobat Pro DC features updated security sandboxing and stricter handling of external connections. Outdated JavaScript commands or unverified email routing used in older Acrobat XI forms are frequently blocked by DC's default trust settings.
How do I fix a PDF form script that won't trigger an email?
The form's creator may need to update the embedded JavaScript. Changing the script from a generic 'mailto:' command to utilizing Acrobat's built-in 'app.mailMsg()' function often resolves compatibility issues with modern PDF readers.
How can I ensure my operating system recognizes Outlook as the default mail app?
On Windows, navigate to Settings > Apps > Default apps, search for 'Email', and choose Microsoft Outlook. On a Mac, open the Apple Mail app, go to Mail > Preferences > General, and select Outlook from the 'Default email reader' dropdown menu.




