We use an exchange server which controls/holds everything and management
wants to merge several users emails to a single user. Due to our setup here
we cannot simply put multiple accounts on a single computer then move the
emails to the master account.

We could always just send the email to the correct account but they want to
preserve who the email was from originally to make is easy to search for
older emails.

I can export the emails easily enough but it doesn't seem to export
attachments. Am I missing something on exporting or is there another way to
do this?

I may not be explaining this well. If you need more info, please ask.