MailAsAttachment Property
True if the merge documents are sent as attachments when the mail merge destination is an e-mail message or a fax. Read/write Boolean.
expression.MailAsAttachment
expression Required. An expression that returns a MailMerge object.
Example
This example performs a mail merge operation and sends the merge results as attachments to e-mail messages. The e-mail addresses are stored in the MailAddress merge field.
With Documents("Main.doc").MailMerge
.MailAsAttachment = True
.Destination = wdSendToEmail
.MailSubject = "Special offer"
.MailAddressFieldName = "MailAddress"
.Execute
End With