Why did Emailchemy stop before completing the conversion?

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If Emailchemy gets stuck while converting one of your files, it will pop up a window saying that it thinks it got stuck, and then it asks you if you would like to stop the conversion or give it some more time.


If you see this message, here are some things to check:

  • Shut down or exit your email app before running Emailchemy.
  • Make sure you’ve selected the email format in Emailchemy that correctly matches the type of email files you have. Emailchemy will usually warn you if you haven’t, but it does give you the option to proceed with unexpected results (like not finding any messages or not completing…)
  • Make sure you’ve pointed Emailchemy’s converter to the correct location of your email files.

If you are working with extremely large email files, then you may have to increase the amount of memory that Emailchemy uses. You can do this by editing the vmoptions file.

On macOS, this file is called vmoptions.txt and is located inside the Emailchemy.app file. To see it, right-click on the Emailchemy.app file, then select “Show package contents”.

On Windows, this file is called Emailchemy.vmoptions and is located inside the Emailchemy install folder.

Once you have found your vmoptions file:

  1. Open the vmoptions file in a text editor of your choice (Notepad, TextEdit, Sublime Text, etc.)
  2. Add this line at the bottom: -Xmx2048m
  3. Save the vmoptions file
  4. Restart Emailchemy

If that’s not enough memory, try changing the -Xmx… line in the file to -Xmx4096m.

Why did Emailchemy stop before completing the conversion?