Migrating from Lotus Notes to Microsoft Exchange.
Microsoft Access File attachments and exe file attachments did not convert as file attachments, but rather as a copy of the original attachment. They appear as a picture object in the Outlook email message.
In Lotus Notes, the file attachment can be opened as Microsoft Access files.
This is a Outlook/Exchange configuration issue. The .exe and .mdb extensions are on your "blocked attachment" list. You will need to edit the configuration to allow these extensions to migrate.