Postfix and aliases

Hi,
Excuse me for my english, so I am french.
I have a mail server which runs with Postfix.
The users of this server have an adress on the local network
(xxx@server) and an adress on the internet (xxx@laposte.net).
When an user send a mail to an other user of the local network with the
internet 's adress, the email goes to the Internet. I would like that
the emails keeps on the local network.
I tried to define a virtual alias such as (xxx@laposte.net xxx@server),
it worked but I am not the owner of this domain. So, it didn't work for
all the adresses @laposte.net.
How can I proceed ?

Thank you,

Benjamin
VINSARD

Benjamin VINSARD <b.vinsard-NO-SPAM-@-NO-laposte.net> schrieb:

> The users of this server have an adress on the local network
> (xxx@server) and an adress on the internet (xxx@laposte.net).
> When an user send a mail to an other user of the local network
> with the internet 's adress, the email goes to the Internet. I
> would like that the emails keeps on the local network.
> I tried to define a virtual alias such as (xxx@laposte.net
> xxx@server), it worked but I am not the owner of this domain. So,
> it didn't work for all the adresses @laposte.net.
> How can I proceed ?

Look for: recipient-canonical

HTH & ciao, Georg

Georg Kottrup a écrit :
> Benjamin VINSARD <b.vinsard-NO-SPAM-@-NO-laposte.net> schrieb:
>
>
>>The users of this server have an adress on the local network
>>(xxx@server) and an adress on the internet (xxx@laposte.net).
>>When an user send a mail to an other user of the local network
>>with the internet 's adress, the email goes to the Internet. I
>>would like that the emails keeps on the local network.
>>I tried to define a virtual alias such as (xxx@laposte.net
>>xxx@server), it worked but I am not the owner of this domain. So,
>>it didn't work for all the adresses @laposte.net.
>>How can I proceed ?
>
>
> Look for: recipient-canonical
>
> HTH & ciao, Georg

It works !
Thank you very much.

Benjamin
VINSARD