How to Fix Adobe Acrobat Error When Sending a PDF by Email
Question details
The user encounters an error message when attempting to send a PDF as an email attachment directly from Adobe Acrobat.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Attempting to share a PDF file via email directly through the Adobe Acrobat application interface.
- Observed behavior
- Acrobat displays an error stating that a problem occurred while sending mail, despite a supported email client being set as the system default.
Ensure that your default desktop email client (such as Outlook or Apple Mail) is fully set up, logged in, and able to send and receive standard emails without issues before troubleshooting Acrobat.
Update Acrobat and Verify System Default Email Apps
Installing the latest Acrobat software updates and re-confirming your operating system's default email application resolves most MAPI communication errors.
Adobe Acrobat relies on a background communication protocol (MAPI) to interact with your email application. When Acrobat is outdated, or if the operating system recently underwent an update that reset default app associations, this communication link can break.
Updating the application and manually resetting your system's default email preference restores the necessary registry paths.
Open Adobe Acrobat, click on 'Help' in the top menu bar, and select 'Check for Updates'. Follow the on-screen prompts to download and install any available updates.
Once the update is fully installed, restart your computer. This ensures that all necessary system registry changes and background services are refreshed.
Go to your system settings (e.g., Windows Settings > Apps > Default apps). Scroll down to the 'Email' section and ensure your preferred MAPI-compliant email client (like Microsoft Outlook) is selected.
Open your PDF file in Acrobat again, click on the email icon in the toolbar, and verify if the attachment successfully opens a new draft in your email client.

Send PDFs Seamlessly with WPS Office
Bypass frustrating email configuration errors. WPS Office features a robust, built-in PDF reader and editor that lets you view, modify, and email PDF documents instantly without software conflicts.
- 1. Launch WPS Office: Open the WPS Office application on your computer.
- 2. Open Your PDF Document: Click on 'Open' from the home screen and select the PDF file you want to email.
- 3. Access the Email Feature: Click the 'Menu' button in the top left corner, navigate to 'Share', and select 'Email'.
- 4. Send the Attachment: Your default desktop email client will immediately open a new message window with the PDF securely attached and ready to send.

Frequently Asked Questions
Why does Acrobat keep saying 'a problem occurred while sending mail'?
This error generally occurs when Acrobat is unable to communicate with your system's default email client. It is frequently caused by outdated software, conflicting Windows updates, or incorrect default app registry settings.
Can I email a PDF from Acrobat using Gmail instead of Outlook?
Yes. To use Gmail, you must configure it within Acrobat's internal settings. Go to Edit > Preferences > Email Accounts, click 'Add Account', choose Gmail, and follow the browser authentication steps.
What should I do if updating Acrobat doesn't fix the email attachment error?
If updating doesn't work, you can try repairing the software installation. Open Acrobat, go to 'Help' > 'Repair Installation', wait for the repair process to finish, and restart your computer.
Do I need to keep my email app open before sending a PDF from Acrobat?
While it isn't strictly required, keeping your desktop email client (such as Microsoft Outlook or Windows Mail) open in the background can prevent startup timeouts and ensure a smoother connection when initiating an email from Acrobat.




