Although you may directly enter the addresses of recipients of your message into the different address fields (``To:``, ``Cc:`` and ``Bcc:`` although the last two are optional and so might not appear), there is a more convenient way to do it using the address book. To insert an address fromyour address book you should type the first few letters of either the ``nick name'' (or the ``alias'') for this address or the the first letters of the e-mail address and press <TAB> key or click on the ``Expand'' button. If there is only one possible expansion for the letters you have typed, Mahogany will automatically replace them with the corresponding full e-mail address. Other possible cases: either there are no matches at all and a message in the status line of the window will tell you so, or there are more than one match in which case you will be presented with a choice of all possible completions.
Hint: if you press <TAB> immediately after the address expansion it will bring you to the next text entry zone and will not attempt the address expansion the second time.
A special feature of the address expansion is the so-called ``group extension'': if you type the first few letters of an address group name (see ``Address Book Editor'' description for more about it) it will be replaced by the addresses of all the addresses in this group. So, for example, if you have a group called ``Friends'' you may type ``fri'' in the ``To:`` text entry zone and after pressing <TAB> it will be replaced by the e-mail addresses of all your friends.