andypitechnology

Designed for wordpress hosting companies or wordpress site administrators, this plugin allows any user to send a support request by email directly from their dashboard. 
The dashboard widget title, message, email recipient and email subject can all be specified in the plugin settings page. 
Please note: if the dashboard widget title is not set, it will NOT display, and obviously if no email address is set, an email will not be sent.

Support Email Dashboard Widget

Displays dashboard widget allowing the user to send a support request email to the site administrator.

janhenckens

This plugin makes it fast and easy to integrate Help Scout’s Beacon feature into your WordPress dashboard. That way, your client has easy access to your documentation and/or has an easy way of contacting you in case they encounter a problem.
Read more about Help Scout Beaon <a href="http://www.helpscout.net/blog/introducing-beacon/" rel="nofollow ugc">here</a>.
Note: the plugin or it’s author are not affiliated with Help Scout in any way.
After installation, you can customize the beacon’s options, icon and colour. 
You can also enable the plugin for selected member roles, giving you control over which of your users has access to the beacon and can contact you.

Dashboard Beacon

Easily integrate a Help Scout beacon in your site's dashboard.

Support Email Dashboard Widget vs Dashboard Beacon