Options.SendMailAttach property (Word)
True if the Send To command on the File menu inserts the active document as an attachment to a mail message. Read/write Boolean .
expression An expression that returns an 'Options' object.
False if the Send To command inserts the contents of the active document as text in a mail message.
This example opens a new mail message that has the active document attached to it.
Options.SendMailAttach = True ActiveDocument.SendMail
This example returns the state of the Mail as attachment option on the General tab of the Options dialog box.