Greetings, I have a client with an website/email account on our server, but her adsl line provider is AOL. Her laptop, using Outlook Express (shudder) can send ok using my dsl (BT business service), but comes up with a "connection refused" socket error on her home (AOL ) service. Some noise on the script kiddy forums suggest that aol/sky is closing port 25 to traffic with a non-aol header . I have tried to enable port 465 on our server by uncommenting the appropriate lines in master.cf, but this causes postfix to stop service. Any ideas?