Sending mail to another OfficeTalk user is very simple and may be done in the following way:
Double click on each user that you wish to send mail to from the list of users in the Recipient Address Book window.
Enter a subject into the Subject field.
Enter your message into the Message window. You may use the format bar to add formatting and colour to the text that you enter.
Press the 
button. The Send Mail dialog box is displayed.
Specify a priority for the mail message if you wish and press the Send button. Instead of pressing the 
button you can press Ctrl+S instead. This will send the
message as normal priority and will not display the Send Mail dialog box.