We do support SSL encryption for all mail connection protocols.
If you are using our WebMail at http://webmail.yourdomain.com or http://www.outitgoes.com, you can access a secure version at https://www.outitgoes.com.
If you are connecting to your mailbox through a desktop-based email client, the ports are:
Be certain to select the option in your mail client to use secure password authentication when using a secure connection.
You may receive a warning when making a secure connection to your mailbox. This is a common warning, and you can accept the certificate permanently despite the warning.