Filtering Emails with "wpmem_email_newreg"

Hi there,

Awesome plugin. I love that there are so many hooks and filters. I’m having a problem with filtering emails.

I’m trying to add an image to the top of the emails like so:

//wp-members customize emails
function my_email_filter( $email_content )
{
	// the content of the email comes to
	// the filter in the parameter $email_content

	// you can do whatever you want to it here:
	// add to it:

	$email_content = '<img src="https://www.mywebsite.com/logo.png">'
		. $email_content;

	// or you could use something like php's
	// str_replace to filter the string and
	// add/remove content, etc.

	// whatever you do, you need to return
	// the filtered result:

	return $email_content;
}
add_filter( 'wpmem_email_newreg', 'my_email_filter' );

However the registration emails aren’t being modified. I’m running the latest version of WP-Members.

Any ideas what might be going wrong?

Thank you!

https://www.ads-software.com/plugins/wp-members/