I'm trying to give users a link directly to the email page, but I'm getting an insufficient permissions message, even when logged in as admin.
Similar to this issue with a previous edition: http://wordpress.org/support/topic/plugin-email-users-you-do-not-have-sufficient-permissions-to-access-this-page
Trying to send them to sitename.com/wp-admin/admin.php?page=mailusers-send-to-user-page
Should force a login and then send them to the email form, but it doesn't.