postfix multibcc - spofed FROM for one domain

[maciejm]

Hi
I read a http://www.postfix.org/ADDRESS_REWRITING_README.html but this not resolve my problems

i need a spoof any my FROM: if e-mail message will be sent to secify one domain

example

to: *@external-doamin.com from:nore...@domain.com


external-doamin.com - this is extrnaal domain in my onother mta (qmail)

nore...@domain.com - this is my existing domain


why I do it

I crate a small bigrother for postfix and postfix can't send multi_bcc and a resolve using alias maps


bcc_...@external-doamin.com - > us...@domain1.com us...@domain2.com ...

problem in this case is a returned message :)

if i spoofed from - problem resolved

any idea ?