Problem: Acrobat crashes on clicking the attach to email icon

When you try to attach a PDF to email using the Attach to Email icon in Acrobat DC on macOS Mojave, Acrobat crashes with the following error message: “Acrobat Pro DC quit unexpectedly”.

Acrobat crashes on clicking the Attach to Email icon

This usually happens due to one of the following reasons:

  • Insufficient permission on the SendMail folder
  • The SendMail folder is corrupted


To resolve the problem, try the following steps:

  1. From the menu bar on the desktop, click Go > Go to Folder.

    Choose Go > Go to Folder
  2. In the Go to Folder dialog box, enter /private/var in the text field, and then click GO.

    Go to the Folder
  3. Using the search box at the upper right corner of the dialog box, search for "SendMail". (Ensure that you select the “Var” folder, else it may not find it.)

    Search for Sendmail folder
  4. Move the SendMail folder to Trash.

  5. Now close Acrobat and relaunch it. (It'll re-create the SendMail folder, and that should fix the problem.)