To setup PostMaster for your mobile device, you will need to use the following settings:
Incoming:
Username: <Your PostMaster Address>
Password: <Your Password>
Server: imap.postmaster.co.uk
SSL/Security: On
Port: 993
Outgoing:
Username: <Your PostMaster Address>
Password: <Your Password>
Server: smtp.postmaster.co.uk
SSL/Security: STARTTLS
Port: 587
For Blackberry we highly advise you use your operators portal for changing mobile settings rather than attempting to do so on your device. Eg: o2, T-Mobile and Vodafone all have dedicated BIS portals where you are able to configure your account.
IMAP/POP Accounts for Mobile Devices (Blackberry/Android/iPhone etc)