This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Automatic Blog Subscription


*** PLUGIN DEVELOPMENT ABANDONED – It is no longer useful and/or compatible with recent versions of WPMU or WP >= 3.0 ***

Mu-ABS (which stands for Mu Automatic Blog Subscription) is a mu-plugin for WordPress Mu.
When you build a blog network with such a platform, you probably wish that a user subscribed to one of your blogs is actually subscribed to each blog of the network. This does not natively happen with WordPress Mu.
This mu-plugin changes this behavior. When logged-in users visits a blog for which they have no capabilities (i.e. not subscriber), they are automatically and transparently added as a subscriber.


GNU General Public License v3


  1. Download the file
  2. Unzip the archive
  3. Upload the file mu-abs.php to the mu-plugins directory of your WordPress Mu installation
  4. You are all set

Contributors & Developers

“Automatic Blog Subscription” is open source software. The following people have contributed to this plugin.


2008-09-09 – Release 0.1
2008-09-09 – Changed the subscription event: on visiting the blog instead of accessing the user profile
2008-08-12 – Picked up the idea from