WP App Studio is a Professional WordPress Plugin Development Platform for building custom post types, fields, taxonomies, widgets, forms, notification
WP Ticket is a very easy to use helpdesk and support ticket management system to receive, process, and respond to service requests.
MailCWP, Mail Client for WordPress. A full-featured mail client plugin providing webmail access through your WordPress blog or website.
Queue, Throttle, Send SMTP email through multiple providers. Automatic re-send when non-delivery received.
Software Issue Manager allows to track the progress and resolution of every project issue in a productive and efficient way.