When I pop the exchange server over the internet it downloads all the messages. But when i try to reply or send with outlook or outlook express this error message comes out The connection to the server has failed. Account 'mail.domain.com', Server: 'mail.domain.com', Protocol: SMTP, Port 25, Secure(SSL): No Socket Error: 10060, 0x800CCCOE I've reviewed the server publishing rules and they are enable. What's happening.