How to forward all email except...

[Gerald Brandt]

On 2015-10-16 02:14 PM, Mihai Badici wrote:
>
> On Friday 16 October 2015 13:58:29 Gerald Brandt wrote:
>
> > Hi,
>
> >
>
> > I have kolab configured for domain example.com. So a user will get
>
> > email for user at example.com.
>
> >
>
> > I'd like to change is so any user at example.com gets sent to an
>
> > external host, and any user at mail.example.com is delivered locally.
>
> >
>
> > I'm doing this for migration purposes. I have an Exchange server that
>
> > has been running for years. As users are added to Kolab, I tell the
>
> > exchange server to forward emails to user at mail.example.com. This works
>
> > like a charm as long as each user has a secondary email that matches.
>
> >
>
> > If a user on Kolab sends email to a user on Exchnage, I start getting
>
> > issues. The email bounces because the Kolab user doesn't exist on the
>
> > domain. So, I want to send ALL email to exchange, and then for migrated
>
> > users, it can forward back to mail.example.com
>
> >
>
> > Once all users are migrated, I need to chnage it back to except for the
>
> > domain.
>
> >
>
> > Is this possible?
>
> >
>
> > Thanks,
>
> > Gerald
>
> I think you can use
>
> transport_maps = hash:/etc/postfix/transport
>
> And in the transport file:
>
> example.com smtp:[exchange_server]
>
> This will forward all mails to exchange.
>
> > _______________________________________________
>
> > users mailing list
>
> > users at lists.kolab.org
>
> > https://lists.kolab.org/mailman/listinfo/users --
>
> Mihai Badici <http://mihai.badici.ro>
>
>

Hi,

Although that works, it forwards the email after it's done its name 
replacement.  ie: if the primary email is bob.marley at example.com, and I 
send to bmarley at example.com, it gets to the exchange server as 
bob.marley at example.com, and that's not a valid user name.

Gerald

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