As part of learning the interface, I’m going to explain what each button does.
Get Mail – checks the email server for new messages and sends any messages you have waiting to go out.
Write – opens a blank email.
Address Book – opens up your address book.
Reply – opens an existing email and allows you to reply to the sender.
Reply All – opens an existing email and allows to you reply to the sender and all the other recipients.
Forward – opens an existing email and allows you to send it to someone else.
Delete – throws an existing email away.
File – allows you to move an email to another folder.
Junk – labels a message as “junk mail”. If your Junk Mail Controls are setup, it will also move the “junk” message to the Junk folder.
Print – allows you to print an email.
Stop – stops Thunderbird from contacting a server.