This plugin allows you to Restrict a particular or certain username, email addresses or symbols, or email from specific domain names in the form registration when registering for your site and you can allow to use a certain language (arabic cyrillic latin …) or all languages and characters and symbols, you can also control and modify all errors messages and allow certain characters (Symbols and characters accented as é û), and allowing you to change the author slug (defaults to the username of the author), and you can control and adjust all settings from the plugin settings page in admin...
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