The "Default email address" field located here:
Admin control panel -> Setup -> Options -> Basic information -> Default email address
Requires you to use an email setup in cPanel. For example
Admin control panel -> Setup -> Options -> Basic information -> Default email address
Requires you to use an email setup in cPanel. For example
admin@example.com
. Using for example johnsmith@gmail.com
will result if emails going to the recipients junk folder.