Hi, If your mails are not delivering and you getting the following error then probably your firewall is blocking your relay host. You need to allow it. before-remote[4463]: check handlers for addr: xxxx@yahoo.com postfix/smtp[4462]: 4099BBE815D: to=, relay=127.0.0.1[127.0.0.1], delay=0, status=sent (250... Continue reading →