In order to use the email log you first need to enable it and set it up. This is covered in this section.
In order to setup the email log, you first need to sign in as described here.
Then you click Logging on the left below Other:
Then you see this option as the third section from the top:
(Remember to click Save in the bottom right to save any change you might have done.)
The parameters are:
E-mail logging enabled
Click on this switch to enable or disable the e-mail log. When the option is shown in blue and the switch on the right, like above, then the option is enabled.
Detele e-mail log entries older than:
Here you can specify for how long, that you want to keep the entries in the email log. On the screen above we have chosen to keep the entries and the emails for 120 days.