Best answer by Ryan
You should be able to access your email service through the ordinary email app installed onto the phone, although as it's not a mainstream email provider (i.e Hotmail, Gmail) you will need to set up the email account manually.
I've found the below settings from the CIX website which should work:
Incoming mail server: mail.cix.co.uk
Incoming Ports: POP3 (port 110) / IMAP (port 143)
Outgoing mail server: mail.cix.co.uk
Outgoing Ports: SMTP (port 25) / Alternative SMTP (port 587 - recommended)
Outgoing Authentication: POP before SMTP / SMTP Auth (recommended)
Outgoing Authentication Method: Password, Plain or Normal Password *1
Username: (Your Nickname may differ from your Internet Hostname)
Password: (your mail password may differ from your CIX Conferencing password)
Connection Encryption: STARTTLS
If you need any further support, contacting CIX directly will be your best bet.