After searching for days and also contacting blackerry, i have managed myself to get btconnect email working on my playbook, these are the settings for both the old pop3 and new pop.outlook settings (offive 365)
Old:-
Description: what ever you want to display (can leave blank if you wish)
Display Name: again whatever you want (can leave blank if you wish)
Username: your @btconnect.com email
Email Address: you own email address if you have one set up, otherwise it is the @btconnect.com
Password: whatever your password is
Server: pop3.btconnect.com
Port: 110
Use SSL: off
SMTP Username: remove whatever is displayd and leave blank
SMTP Passord: again remove whatever is displayed and leave blank
SMTP Server Address: mail.btconnect.com
SMTP Port: 25
SMTP Encryption: Off
the rest of the options are up to you.
select save, this will then be set up and fully working.
New Office 365:-
The only different setting are:-
Server Address: pop.outlook.com
Port: 995
Use SSL: On
SMTP Username: your @btconnect.com email address
SMTP Password: your email password
SMTP Servers Address: smtp.outlook.com
Port: 587
SMTP Encryption: StartTLS
I have only set up an account still with a @btconnect address, if this does not work try your own email address in the SMTP Username.
I also have this problem with my Playbook. Is there any available setup from BT we could use?