Secure Invites is a WordPress plugin that allows you to only allow invited people to sign up.
Next on the list for this plugin is the ability to invite multiple people at the same time (with the same message).
Then, adding the ability for site admins to only allow hand-picked users to send invitations (thanks to Tuomas for that suggestion here: http://www.stillbreathing.co.uk/blog/2009/01/14/wordpress-mu-plugin-secure-invites/#comment-24240).
Requires: 2.7 or higher
Compatible up to: 3.5.2
Last Updated: 2013-5-29
1 of 5 support threads in the last two months have been resolved.
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