Restrict comments with regular expression

I want to prevent users to write email addresses in comments.

I know we can restrict words in wp-admin Settings Discussion Disallowed Comment Keys.

but can we add a RegExp such ([a-zA-Z0-9+._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9_-]+) to restrict all the emails?

I was trying to add something like:

//Regular expression to ban emails
function te_check_comment($approved, $commentdata){
 if(preg_match('#\b((?=[a-zA-Z0-9+._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9_-]+){1,5}\b#i',$commentdata[comment_content])){
  $approved = 0;
 }
 return $approved;
}
add_action('pre_comment_approved', 'te_check_comment', 10, 2);

Source:https://techearl.com/wordpress/wordpress-moderate-comments-using-regular-expressions