Kenny Zaron

This plugin allows for network administrators on WordPress multisite environments to send an email to users that 
they select based on the users’ roles in individual sites. For example, checking only “editors” will go through 
each active site and add anyone with the role of “editor” to your list of emails to send to.
To use the plugin after installation & activation, find Users / Mass Email in the network admin dashboard in your 
multisite install. Then, select the user types you wish to email and click on the button for “Load the List”. This 
will load the list of users to email. Then you may compose your email in the boxes provided and click the send 
button at the bottom of the screen. If all goes well you will be presented with a confirmation page indicating 
that your email was sent successfully.
This plugin is NOT intended for administrators to be sending unsolicited spam to their users. In fact, it was 
created with more formal environments in mind. One example would be a University setting where administrators 
of the network may need to notify students and faculty of potential downtime. With the plugin’s implementation 
I would imagine it would be a highly inefficient way of sending spam anyway.

Network Mass Email

Allows network admins to send a manually created notification email to all registered users based on user role.

Justin Fletcher

keycapability

The ‘Network Subsite User Registration’ (NSUR) plugin removes the WordPress Multisite restriction that registration is on the Network main site, subsite Administrators can now allow user registration for their site only.
WordPress Network (Multisite) installations by default only allow user registration for the whole Network, e.g. users can only register for the main site and not the other sites on the network. The ‘Network Subsite User Registration’ plugin allows local admins of sub-sites within the Network/Multisite the ability to enable user registration themselves for their site.
The role by default that a new user receives is ‘subscriber’, however, there is a setting which allows you to define a different initial role (per sub-site) that a user receives after registration.
@Developers – If you want to use your own template you can override the template used for the ../local-signup page by creating a template with the file ‘page-signup.php’ and add this to either the parent or child theme.
<h4>Plugin site</h4>
<a href="https://justinandco.com/plugins/network-subsite-user-registration/" rel="nofollow ugc">https://justinandco.com/plugins/network-subsite-user-registration/</a>
<h4>GitHub – Development</h4>
<a href="https://github.com/justinticktock/network-subsite-user-registration" rel="nofollow ugc">https://github.com/justinticktock/network-subsite-user-registration</a>

Network Subsite User Registration

This plug-in works great to handle a situation that Wordpress should just do out of the box.  I would be hard pressed to make multi-site usable without it.

So simple, but a huge time savings


Ideal for maintaining control over users.


Work as imagined

Allow the public to register user accounts on Subsites within a Network (MultiSite) installation.

Network Mass Email vs Network Subsite User Registration