Extract email addresses from Mac Mail folder - macOS Mojave

If you have macOS Mojave installed on your computer you should give access for the Email Extractor program to scan Mac Mail folder.
Please do the following steps:

1. Open the Apple menu and choose System Preferences option.

2. Select the Security & Privacy control panel.

3. Open the Privacy tab, then from the left-side menu select the Full Disk Access item.

4. Click the Lock icon in the lower left corner of the preference panel and authenticate with an admin level login.

5. Click the [+] plus button to add an application with full disk access.

6. Navigate to the Applications folder and choose the Email Extractor program to grant the software with the Full Disk Access privileges.