The toolbar buttons
From left to right on the Message window toolbar:

The Message menu
Use this menu to manipulate draft messages.
Deliver- 
Delivers the draft message.
 
Deliver Urgent- 
Marks the draft message with urgent priority.
 
Hold- 
Holds a copy of the draft message
for later modification.
 
Print- 
Sends the draft message to the printer.
 
Close- 
Closes the open draft message.
 
The Edit menu
Use this menu to edit the text of a draft message.
Undo- 
Reverses last editing change.
 
Cut- 
Deletes selected text,
copying it to the clipboard.
 
Copy- 
Copies selected text to the clipboard.
 
Paste- 
Inserts copy of clipboard text.
 
Delete- 
Deletes selected text.
 
The Text menu
Use this menu to manipulate text of a draft message.
Editor- 
Invokes the
user-specified text editor.
 
Find- 
Searches for specified words or characters
in the draft message.
 
Find Next- 
Searches for the next occurrence
of the string for which you just searched.
 
Include File- 
Includes an existing file
in the draft message.
 
The Attachments menu
Use this menu to manipulate attachments to a draft message.
Import- 
Adds an attachment to the draft message.
 
Create- 
Creates a new attachment and adds it to the draft message.
 
View- 
Views the attachment
using a program appropriate to the attachment type.
 
Edit- 
Modifies the contents of the attachment
using a program appropriate to the attachment type.
 
Attributes- 
Changes a selected attachment's type or the comment displayed with it.
 
Format- 
Specifies whether attachments should be sent in
uuencode or MIME format.
 
Delete- 
Removes the selected attachment.
 
UnDelete- 
Restores the last deleted attachment.
 
The Preferences menu
Use this menu to customize your mail session.
Deliver- 
Customizes messages you send.
 
Message- 
Customizes how you draft messages.
 
© 2003 Caldera International, Inc.  All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003