Resets the merged message.
This method sets MergedMessage property to a null reference (Nothing in Visual Basic). In fact, this method reverts the merged message back to the template.
After you finished merging a portion of actual values with a template and sending the resulting message, call this method if you need to proceed with creating another message based on the same template.
The example is available in MailMerge topic.
MailMerge Class | MailBee.Mime Namespace | MailMessage