To setup PostMaster for your mobile device, you will need to use the following settings:
Incoming:
Host: mail.postmaster.co.uk
Username: <Your PostMaster Address>
Password: <Your Password>
SSL/Security: On
Port: 993
Outgoing:
Host: mail.postmaster.co.uk
Username: <Your PostMaster Address>
Password: <Your Password>
SSL/Security: STARTTLS
Port: 587