Oh, you need not answer that question (it doesn't seem to be too simple a question to answer), but you should know there's a nice way to compose a message from (and to) a recipient in Mozilla Thunderbird, Netscape or Mozilla.
To compose a message from the address book in Mozilla Thunderbird, Netscape or Mozilla:
- Select Window | Address Book from the menu.
- The corresponding commands are Tasks | Address Book in Netscape 6 and Communicator | Address Book in Netscape 4.
- Highlight the entry you want to compose a message to.
- Press Ctrl-M (Windows) or Command-Shift-M (Mac).