By default Thunderbird and Windows7 will assume you want to collect and send email by using IMAP.

Pinbrook mailservers are set up to allow you to use IMAP. You can still use POP if you prefer.

When configuring IMAP/Thunderbird/Windows7 please note you will need to override some of the settings the auto config tries to use.

User - this is your full email address not just the prefix, ie

Incoming/IMAP port is 143

Server Name is

SMTP is, port is 25