All of our hosted mailboxes support the IMAP protocol (both our Full Exchange and POP mailboxes). The connection details are as follows:
IMAP server: mail.thecloud.net.nz
Port: 993 (SSL/TLS)
The server does also support unencrypted connections, but these should only be used if SSL/TLS is completely unavailable as your password will be sent over the internet in clear-text. The unencrypted port is the typical one for IMAP (143).