1. Login into roundcube by https://domainname/roundcube

2. Enter username and password and click on Login.

3. To send mail click on Compose and enter To, Subject and body and click send button.

4. Select Mail to check Inbox, Sent mails, Spam mails and Drafts.

5. Select Contacts to check all contact, This feature also allow to add new contact by entering required information and user can also import contact through CSV files. Through this feature user can manage large number of contact easily.

6. Select Task to add To-Do list, This feature mainly allow user to add task, due dates and add description for each task.