A PSMailbox subscription includes secure IMAPS (Internet Message Access Protocol Secure).  IMAPS allows you to seamlessly access your PSMail account from multiple computers using multiple email clients. Changes you make (email deletions, flags, etc.) will automatically be mirrored on the other computers you use. With its SSL encryption for transport, IMAPS is a secure and efficient choice for roaming users and users who regularly need to access their email from several locations. In addition, IMAPS is very connection friendly and works with even an intermittent network connection.