I'm use outlook 2003 & MS SBS 2003 Standard Server.In office, I'm use 192.168.3.2 as my smtp server (POP3 email account) to send mail in outlook 2003.When I not in office, I cannotuse 202.155.xx.xx as my smtp server (POP3 email account) to send mail in outlook 2003, it display connect to serverfail.Do any one know why ? & how to config of it ? Thanks!!!where 192.168.3.2 & 202.155.xx.xx is IP of MS SBS 2003 Standard Server

Do you have port 25 opened from the internet and properly mapped through a NAT translation? Can you telnet to port 25 from home? Mike Crowley A+, Network+, Security+, MCT, MCSE, MCTS, MCITP: Enterprise Administrator / Messaging Administrator

At home, my ISP not allow to use port 25, only can use 1025, so how to config it at firewall or exchange server ?Thanks!!!