MyBB is an opensource, powerful forum
MyBB is a forum software that contains posts for private messages, profiles, conversations etc. It is provided with good features of plugins and themes that makes your site more professional and allows the site to look as the user desire. It supports almost all type of databases and is highly secured. It provides the user to send multiple files for a single post. It auto creates the thumbnail for the attached images. IT also sends email notification of new posts.