This product helped me communicate with more than ninety students this past semester. I could send them individualized emails with feedback and grades for their work. How? SerialMailer not only lets you import groups from AddressBook, but it permits you to import tab-separated text files. I simply exported the relevant data from my FileMaker database and imported it into SerialMailer. SerialMailer lets you compose messages with fields from your database as well as conditional fields. The only drawback: no individual attacchments. You either send everyone the same attachment or you send no one an attachment.