Route zimbra notification emails to another SMTP server

[stalker]

Hello Guys,

Zimbra supports email notification to specified email address in the configuration. So, when a new email arrives to zimbra account it will send a notification to the configured email address.

Now, I would like to configure zimbra to use another SMTP/postfix server to send notification emails and not the local postfix server.

I've studied postfix configuration and found the following configuration. I tried but it didn't work. Please help.

Postfix Configuration Parameters

Thanks in advanced.