Gnanasekaran Loganathan

Activation mail sent to the new user email once a user registered. The user must activate the account by click activation link in addition to a username and password to log in successfully the first time.
This plugin does not currently work with multi-site. Multi-site uses an activation key system for new registrations already.

User Activation By Email

Require users to click the activation link to access the site which is emailed upon user registration.

Chip Bennett

This Plugin remains compatible with the latest version of WordPress, but I am no longer keeping up with any MBP Plugins.
MaxBlogPress plugins require a two-step registration/activation process, as well as a forced opt-in to an email-list subscription, in order to use them. This plugin circumvents those requirements, enabling unrestricted use of the plugins.
Note: this plugin does not install any other plugins. If you wish to use any MaxBlogPress plugins supported by cbnet MBP Auto-Activate, you must install them separately.
Note 2: This Plugin is not an endorsement for MaxBlogPress Plugins, but rather a proof-of-concept to demonstrate why it is futile to force users to jump through Plugin-registration and email-list-subscription hoops just to use Plugin functionality. It appears that some or all of MaxBlogPress Plugins are now released under a non-GPL-compatible license that restricts code modification. Use them at your own risk.
This plugin currently supports the following MaxBlogPress plugins:
<ul>
<li>Different Posts Per Page</li>
<li>DealDotCom Widget</li>
<li>Unblockable Popup</li>
<li>Ping Optimizer</li>
<li>Stripe Ad</li>
<li>Psychic Search</li>
<li>Favicon</li>
<li>SEO Post Link</li>
<li>Banner Ads</li>
<li>Duplicate Post Checker</li>
<li>Multi Author Comment Notification</li>
<li>Optin Form Adder</li>
</ul>
This plugin now also supports the following MaxBlogPress Revived plugins:
<ul>
<li>Front Page By Category</li>
<li>AdSense Deluxe Revived</li>
<li>Flash Fader Revived</li>
<li>Links Manage Widget</li>
<li>Banner Ads</li>
<li>Ajax Post Listing</li>
<li>Random Image</li>
<li>Access By Category</li>
<li>Captcha For Comment</li>
<li>Affiliate Image Tracker</li>
<li>Image Organizer</li>
<li>Easy Custom Fields</li>
<li>Post Ordering</li>
<li>Post Image</li>
<li>Post List By Category</li>
<li>Exerpt Listing</li>
</ul>

cbnet MBP Auto-Activate

Automatically activate MaxBlogPress plugins, without registering and without subscribing to the MaxBlogPress email list.

User Activation By Email vs cbnet MBP Auto-Activate