From yesterday, my mail server(linux) is not accepting connctions on port 25, I can't send out anything from client mail programs. Please Help!!!
the error information:
Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity. Account: 'x.x.x.x', Server: 'x.x.x.x', Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0F
And today, the mail server can't receive any email. But if I send mail on internet site, it's ok! Why?