Jeremy Pry

When using the <a href="http://support.wpengine.com/staging/" rel="nofollow ugc">Staging site</a> on WP Engine, you may want to prevent the staging version of your site from sending emails to your site users. This plugin redirects all emails to the site admin.
This plugin should be activated on your Production site. Don’t worry — it won’t do anything unless it is active on Staging site. Once you create a new copy of your Staging site, the plugin will start taking effect there.
This plugin is compatible with WordPress Multisite. If you’re using it in a Multisite environment, it is recommended to either Network Activate the plugin, or follow the instructions for installing it to the <code>mu-plugins</code> directory.

Redirect Emails on Staging

Redirect any emails that are sent by the staging site to the administrator of the site.

Yassineh

Since we’ve been using WPEngine we found no way to limit access to the LIVE website. We had problems with users mistakenly editing the live website and messing up the HTML. This plugin basically adds a checkbox to the users (allow login on LIVE) and compare the get_bloginfo(‘url’) to the one setup on the plugin’s setting page. If it matches, it means it’s live environment and will prevent users who are not specifically authorized to login into the live environment. You can bypass this check (in case you log yourself out of live) by setting up a simple cookie. This is not a security plugin, this is just to avoid stupid mistakes. The URL meta value is base64 encoded before storage to avoid the Search and Replace generally done by the “One Click” live push.
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Please let me know if you have any suggestions or questions.

Staging Users Control

A plugin to prevent certain users from logging into the back-end in the LIVE environment. You can let your users edit staging but not live.

Redirect Emails on Staging vs Staging Users Control