Fix SendMail Error When Sending PDFs from Acrobat Pro via Mac Mail
Question details
The user is encountering a SendMail error when attempting to share or email a PDF document directly from Adobe Acrobat Pro using the default Apple Mail application on macOS.

- Product
- Adobe Acrobat Pro
- Device & OS
- macOS
- Scenario
- Sharing a PDF file via email directly from the PDF editor's interface using the system's default mail client.
- Observed behavior
- A SendMail error dialog pops up, preventing the PDF document from being attached to an email and sent through Mac Mail.
Verify that your Apple Mail application is already configured with an active email account and ensure you have your email provider's IMAP and SMTP server settings on hand.
Manually Configure Your Email Account in Acrobat Preferences
Adding your email account directly to Adobe Acrobat using manual IMAP and SMTP configurations bypasses the local application communication error with Apple Mail.
Sometimes macOS security protocols or version incompatibilities prevent third-party applications from calling Apple Mail correctly. By configuring your email servers inside Acrobat directly, the application can independently send out the PDF attachments.
Open Adobe Acrobat Pro. Navigate to the top menu bar, click on 'Acrobat Pro' (or 'Edit' depending on your layout), and select 'Preferences'. In the left sidebar, choose 'Email Accounts'.
Click the 'Add an Account' button and select the 'Add Other' option to manually configure your Mac Mail address.
Enter your email address, account password, and the required IMAP (incoming) and SMTP (outgoing) server details for your email provider. Click 'Add', then select 'Make Default', and press 'OK'.
Open the PDF document you wish to share. Click the 'Send File by Email' (envelope) icon in the top toolbar, select 'Webmail', and choose the Mac Mail email address you just configured. You may be prompted to authenticate one final time before the email is sent.

Send PDFs Seamlessly Using WPS Office on Mac
Skip the complicated IMAP and SMTP configurations. WPS Office provides a built-in, hassle-free way to edit, manage, and share your PDF documents directly through your default macOS mail app without encountering SendMail errors.
- 1. Open Your PDF: Launch WPS Office for Mac and open the PDF file you wish to share.
- 2. Access the Share Menu: Click on the 'Share' or 'Menu' button located in the top navigation toolbar.
- 3. Choose the Email Option: Select 'Email' from the drop-down menu. WPS Office will automatically call your default Mac Mail app.
- 4. Send the Document: A new email draft will appear with your PDF already attached. Simply type in the recipient's address and hit send.

Frequently Asked Questions
Why does Acrobat Pro fail to recognize Apple Mail as my default client?
This commonly occurs due to macOS privacy and security settings restricting third-party applications from controlling Apple Mail, or because of a missing update in Adobe Acrobat that breaks the default mail client integration.
Where can I find the IMAP and SMTP details for my Mac Mail account?
You can locate these settings by opening Apple Mail, going to Mail > Preferences > Accounts, and clicking on 'Server Settings'. Alternatively, you can search for your specific email provider's IMAP/SMTP settings on their official support website.
Can I use webmail services like Gmail or Outlook directly in Acrobat Pro?
Yes. Within the Email Accounts preferences in Acrobat, you can easily add a standard Gmail or Microsoft Outlook account by selecting the respective provider icon instead of clicking 'Add Other', which automates some of the server configurations.
What if I receive an authentication error after adding my email details?
Double-check your password. If your email account has Two-Factor Authentication (2FA) enabled, your standard password will not work. You must generate an 'App Password' from your email provider's account security page and enter that into Acrobat instead.




