I'm using a WP Plugin - http://wordpress.org/extend/plugins/allow-multiple-accounts/ - in order to allow Users to register multiple usernames with 1 e-mail address.
I'm also using GF Registration plugin to register a user when he submits his 1st article.
The WP plugin works 100% but if I complete the GF Form it tells me the e-mail address already exists. This means that GF is overriding the WP plugin script.
Is there any way I can turn of the GF option to check if the e-mail already exist. In my case the user must be able to create several usernames with 1 email address