To create a mailbox and log in to a Webmail client on CloudVPS you should do the next.
1. Log in to your control panel – https://IP_ADDRESS:1500/ispmgr
2. Сlick on Mailboxes under the Mail tab.
3. Сlick on Add to create a mailbox.
4. Now you should add a name and password for your new mailbox.
5. Hit the button OK. A new mailbox ready to use.
6. Click on WebMail client under the Mail tab to log in.
7. Enter mailbox credentials created previously and will be logged to your Webmail client.