Zimbra account to send external mail

[Anamur]

Zimbra always on my cross.

Currently I have the server working with users who manage between them to send us amail.

Since I created the mail server with this account: ecomail.local

Now I want to create an account that I am able to send external email instead ecomail.it with accounts (recorded on register).

Someone knows how to solve this problem indicate?

Sorry for my english translated

[Anamur]

Hello everyone, I have not solved: (but I noticed something in your control panel account, the ability to create an external account, like this: the administration interface

1 - interface for account management, domains and servers
2 - I created a new domain, named ecomail.it,
3 - the GAP and LDAP do not know what they are even if I tried to tell me but too difficult, so I left everything default
4 - when brower account I created (matched to the default) the new account
5 - set the required parameters with password and other
6 - tells me that the text was successful

But when I send an email I get the notification that has not been sent.

Why?

[Anamur]

No one has any advice for me?

I do not know where else to inform me.

[Anamur]

nobody knows how to help me?