Richard Bush

The 42U Jetpack Booster adds redirect tags and HTML email templates to Jetpack Contact Forms.
To add a redirect to your Jetpack Contact Form, just add a text field named “redirect” to your form. It will be hidden on display.
From the HTML view, set the default value to the location where you would like the form to redirect after submission.
[contact-field label=”redirect” type=”text” default=”/thanks/” /]
Note: you must replace the default each time after editing the form with the Jetpack WYSIWYG editor. The value is not saved by Jetpack.

42U Jetpack Booster

The 42U Jetpack Booster adds redirect tags and HTML email templates to Jetpack Contact Forms.

Mark Jaquith

The <a href="https://wordpress.org/extend/plugins/jetpack/" rel="ugc">Jetpack</a> plugin by Automattic does something sneaky: it auto-activates new Jetpack modules. Instead of allowing you to opt in to new modules, Jetpack cheerfully activates them without your permission. These modules can change how your site works and looks.
Manual Control puts a stop to that unwanted behavior. It prevents auto-activation of new Jetpack modules.
Metal texture in the plugin header image by <a href="http://urbandirty.com/gallery/photo/2568483179-m" rel="nofollow ugc">Urban Dirty</a>.

Manual Control for Jetpack

Jetpack auto-activates new modules, without asking your permission. This plugin stops that.

42U Jetpack Booster vs Manual Control for Jetpack