If you want to check whether your customer has received her/his mail, go to the tab “email history” in the navigation bar. You can then search for the customer name and check whether the mail was sent out. If not, please send us a ticket via the service desk to check this issue. To send out the mail to the customer manually again, go into the order, subscription or transaction of the customer. There you will find in the upper right corner a mail sign. Select the mail you would like to send out again and enter the mail address. Click send and the customer will receive the mail again.