1. Go to "Setup" at the bottom of the settings list on the left side of the screen.
2. Inside the "Setup" go to "Settings" at the bottom of the list.
3. Inside the "Settings" go to "Mailbox Settings".
4. Inside the "Mailbox Settings" Enable the mailbox and write your "IMAP Server" and press "Save Settings" below.
5.After Enabling the Mailbox go to "Mailbox" at the settings list on the left side of the screen.
or by searching "Mailbox" in the search menu.
6. Inside the "Mailbox" go to "Configuration".
7. Inside the "Configuration" fill in the mandatory fields marked with * write your "Email/Email Password" to log in and press "Save"
8. After filling the fields and pressing "Save" you will be able to see and access your Email Inbox/Sent Emails and Compose Emails and much more.