PbulkMailer is a bulk email application. Instead of a database, it works with CSV files and has a simple text file configuration. It sends directly to an MX, via a smarthost/relay, or through email accounts. Plain text and HTML messages are supported along with attachments. Per-email customization of subject, name, and body elements is allowed. Delivery and failure are logged to CSV files, and message reads, unsubscription, and spam reporting are handled using included PHP scripts.