Comcast blocked my port 25

About a week ago, my PC’s mail client (Thunderbird) started to complain that it can not login to mail.comcast.net and i could not send any email. It continued to do so for about a couple of days. my wife’s PC was in the same condition. When I logged into Comcast web mail, an e-mail from Comcast was waiting. It basically told me that due to suspicious activity, they blocked my port 25 to protect me being from a victim of security attack. It also tells me how to setup a client to listen to another port.  So I went ahead and setup my client to use another port.  That was […]