Admin Email Column in the Network Sites List
Lists each site's administration email address in Network Admin > Sites so you can contact site owners without opening every site.
Snippet Library
Multisite snippets for WordPress
Snippets for WordPress Multisite networks: network-wide settings, new site defaults, super admin tools and cross-site tweaks. For network administrators who manage many sites from one install.
Allow Network Signups Only From Certain Email Domains
Rejects user signups on the network unless the email address belongs to one of your domains, such as a school or company network.
Custom Welcome Email Text for New Network Sites
Replaces the network's welcome email for new sites with your own wording while keeping the site address, login and dashboard links filled in.
Disable Welcome Emails for New Sites and Users
Stops the "Your new site" and "New user account" welcome emails WordPress multisite sends after activation, for networks that send their own onboarding.
Email Alert When Super Admin Rights Change
Emails the network admin address whenever someone is granted or loses super admin rights, with who made the change.
Email Alert When a Network Site Is Deleted
Sends an email with the site's name, address and the person responsible whenever a site is permanently deleted from the network.
Email a Custom Address When a Site Is Created
Sends a short notice with the new site's name, address and creator to an address you choose, in addition to WordPress's own network admin email.
Export Network Users to CSV
Adds an "Export CSV" button to Network Admin > Users that downloads every network user with their email, registration date, number of sites and super admin status.
Lock the Admin Email on Subsites
Makes the Administration Email Address field on each site's General Settings read-only for site admins, so network notices keep reaching the right person.
Stop New Site and Signup Emails to the Network Admin
Stops WordPress from emailing the network admin every time a site is created or someone activates a new site or account, useful on networks that create many sites automatically.