You need to configure your mail program with secure settings, to encrypt the connection and prevent your password being snooped while it is being sent across the network. These settings will also let you use Happyserver to send and receive mail from your personal device.
If your mail program is one of the ones named, follow the specific instructions. If it is not mentioned in the menu then there is a page that gives generic guidelines (also suitable for server settings for mobile devices).
If you have any problems, contact us.