To create a test email server, I have a similar requirement as:
http://serverfault.com/questions/94640/how-to-redirect-all-outgoing-email-from-postfix-to-a-single-address-for-testing
But I need to send all the emails to an external account, not a local one.
I would like to do something like:
xyz:
[email protected]
but xyz is not local nor smtp.