I finally managed to figure out secure email config for the P990i. This allowed me to set up both my home account and a google mail account.
With the flap open:
First - get to the correct configuration:
Now - fill out
Basic Tab
Account Name: google
Your Name: Your full name
Email Address: Your google mail email address
Connection Type: POP3
Inbox Tab
Incoming Server Address: pop.googlemail.com
Username: Your google mail email address
Password: Your google mail email password
Outbox Tab
Outgoing server address: smtp.googlemail.com
Use SMTP auth: checked
Use Inbox login details: checked
Now - we need to be secure. Take the E-Mail account menu > Advanced option (menu at the top of the screen)
Incoming:
Secure connection: SSL
Incoming mail port: 995
Outgoing tab
Secure Connection: TLS
Outgoing port: 587
Finally Save, Save and then Done.
Now google mail should be available in your messages app.