Sitewide Newsletters is a Wordpress MU plugin that allows site administrators to send an email message to all users.
As of April 2026, Sitewide Newsletters is a WordPress email plugin with 10 active installations and a 0/5 rating0. It has been downloaded 15K+ times in total. Requires WordPress 2.7+ and PHP false+. Available on WordPress.org since 2009. Last updated 10 years ago — may have compatibility concerns. Top alternative: WP Mail SMTP by WPForms – The Most….
This plugin for WordPress MU is really simple. It allows site administrators to send a (plain text) to all users. You can type in the subject and text for the email, and it will try to send it to all user email addresses in the database.
That’s pretty much it.
There are two small additional features with this plugin. Firstly if any emails fail to be sent the failing email addresses will be shown in a list, so you can decide what to do. Secondly there is a “Test” checkbox, which when checked will only send the newsletter to the site admin email address.
If you have a lot of users this plugin may take a long while to run, as it sends a separate email for each user. There is some reasoning behind that: in the future I may write in some special codes that you can use in…
| WordPress | 2.7+ requiredTested up to 4.2.39 |
| PHP | false+ required |
0.5 Added support for sending emails to users with just one role
0.4 Updated menu position, and added Network capability
0.3.2 Compatibility with WP 3.0, several small bugfixes
0.3.1 Updated plugin URI
0.3 Added support link and donate button
0.2 Added from name and from email form fields
0.1 Initial version
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.