Clean Up Booster is a High quality plugin which allows you to clean WordPress and optimize database along performing other vast security functions.
Allows you to create and manage your contact forms and messages.
LiveAgent is the most affordable WordPress live chat, help desk, ticketing system, voice chat & social desk for your website.
The JetMails plugin allows you to easily setup a subscribe form for your list.
Send almost all notifications via XMPP instead of email
VictorChat is a live chat solution that helps website owners convert their visitors into customers!
Enables all outgoing emails to be tracked and logged via ReadNotify.com through native WordPress wp_mail email function.
Just another Reminder Mail plugin. Simple but flexible.
WP Mail plugin is simply a wp network mail or message system. User can send mail or messages to other users over one wp network.