bloodstone community is an open source php forum script, built from scratch with modern techniques and tools, with clean, simple and responsive design.
go to __your_domain/install
there where you will set your database and email information
you need a SMTP services to run the script
gmail provide a free one for you with your account
host : smtp.gmail.com
port : 587
user : your email
pass : your password
PHP 5.5
official : http://bscmm.com demo : http://bscmm.com/demo/