Send-Receive WP Mail as HTML format

/*Method - 1*/
add_filter( 'wp_mail_content_type', function($content_type){
return "text/html";
});

/*Method - 2*/
remove_filter( 'wp_mail_content_type', 'set_html_content_type' );
add_filter( 'wp_mail_content_type', 'set_html_content_type' );
function set_html_content_type() {

    return 'text/html';
}