OfficeTalk displays the status of sent messages in the Status column. For a message sent to a local OfficeTalk user, OfficeTalk displays whether or not the message has been opened. If the message has been opened, the status column indicates when the message was opened.
When you send mail to an Internet recipient, the Status column indicates whether or not the gateway machine has sent the message to the Internet. The status of the message in this case is either 'Sent' or 'Waiting to be Sent'.