SMTP email does not work even with the right firewall rules
Make the following test. Disable all of your SMTP plugins. Temporarily enable WP_DEBUG and WP_DEBUG_LOG in your “wp-config.php” file. Insert the following code in your theme “functions.php” file: add_action( ‘phpmailer_init’, function ( $phpmailer ) { $phpmailer->isSMTP(); $phpmailer->Port = 587; $phpmailer->SMTPAuth = true; $phpmailer->SMTPSecure=”tls”; $phpmailer->FromName = get_bloginfo( ‘name’ ); // Type your SMTP credentials below. $phpmailer->From … Read more