Click on the Mailbox menu on the left pane of the window to mail and communicate between admin and users.

You are able to see the Inbox in the opened page, from where you can compose and delete mails.

To compose a mail,

Firstly, select if the mail is for one user or for all the users. Then, enter the user name if it is for a single user. Write the subject, compose your mail and press ‘send’and the message “ Mail Sent Successfully” gets popped up.