This page displays the email queue.

In the overview, you can find the email addresses to which individual emails are to be sent, the subjects and texts of these emails and the times when they are to be sent. You can remove individual emails from the queue by clicking on the icon.

If there is not a single item in the table, it means that there is not a single email in the queue (all of them have already been sent). If there are some items in the table, you can batch delete them by clicking on Delete unsent emails from queue.

If you are trying to send a large number of emails to one and the same email server, you have to keep in mind that they will be sent in batches (5-minute intervals) so as not to be marked as spam.