You can change default email sending policy. Default is return type of `phpmailer object` interperteted as `true` means send.

This can be used if you wanted to use your own mailer rather then default phpmailer. This hook may be used with additional hook.

https://www.opensource-socialnetwork.org/documentation/view/5559/mail-send
~~~
<?php
function my_component_init(){
ossn_add_hook('email', 'send:policy', 'my_component_hook');
}
function my_component_hook($hook, $type, $allowed_or_not, $instance){
return false;
}
ossn_register_callback('ossn', 'init', 'my_component_init');
~~~