To send mail to an address not in the address book:
Click the Compose button, to display the Compose page.
In the To, CC ("carbon copy"), and BCC ("blind carbon copy") text boxes, enter the e-mail addresses of the message recipients. You can type or paste e-mail addresses into these boxes, using a comma to separate multiple addresses.
Add all recipients to address book. If you select this option, all e-mail addresses in the To, CC, and BCC areas will be added to your Address Book.
To spell check your message, select the dictionaries that you want to use, and click Spell Check.
Attachments. Click Browse to select the file you want to attach, or type the path and name of the file into the box. Then, click Attach. To remove an attachment, select a file in the list and click Remove.
For information on sending mail to an address in the address book, see Using the Address Book.
Save message in Sent folder: Select this option to save a copy of the message in your Sent folder.
Include Signature: Select this option to add your signature to the message.
Edit Signature: Click Edit Signature on the left tool bar to modify your signature.
Save a draft of the message: Click Save on the left toolbar to save a copy of the message in your Draft folder. You can later select the message, modify it, and send it.
See Preferences to customize how your mail is sent.
Installing Additional Dictionaries for the Spell Checker