Hi all, I'm using postfix as linux smtp gateway and have one linux email server (also postfix) inside our network. We would like to use smtp gateway to relay email for travel user who already have account in the linux email server. For security reason, we will use SMTP auth on linux smtp gateway. But, how can the gateway recognize the username and password on linux mail server. The linux mail server using local linux user account as email user account. Thanks, ORooney
