[SOLVED??] [tlug] Postfix and relaying

[Gerald Naughton <naughton123@example.com>]

Hi All
> From: Gerald Naughton <naughton123@example.com>
> Subject: [tlug] Postfix and relaying
> To: tlug@example.com
> Date: Thursday, July 10, 2008, 7:58 PM
> Hi All
> Wondering if anyone has this experienced
> 
> Currently i host 2 domains in japan and everything works
> find
> 
>    xxxx.jp
>    yyyy.co.jp
> 
> Now my headoffice wants to route all emails thru
>    headoffice.com
> 
> So for postfix i would do 
>   relayhost = [headoffice smtp ip]
> 
> But i only want to want internal email by sender
> headoffice.com
> thru this relayhost 
> 
> Guessing it is something to do with
> transport_maps = hash:/etc/postfix/transport
> 
> So i want the sender
>   sender_username@example.com -> HeadOffice Mail
> Server
> 
> Otherwise

I wanted to route email by sender 
Yuo could do it if your server is not accepting email
http://www.3d4x.de/swift/senderbased.html

Otherwise based on postfix founder Wietse,it can`t be done
http://osdir.com/ml/mail.postfix.devel/2005-08/msg00018.html

best regards
gerald