Change postmaster default mail address in bounce mail

Hi,
i have an ispconfig server on top of a debian 8 (jessie).
the server was originally installed with a domain name
not real: server.1domain.com

Now i have changed the server name in
not real: server.2domain.net

i changed the name in:
ispconfig
hostname
/etc/hosts

when i send a mail to an address with the mailbox full, i get the bounce sent froM. [email protected]
instead of
[email protected]

Where do i have to change config files to reflect new domain name in bounces ?

Thanks

 

Edit your /etc/postfix/main.cf
add "bounce_notice_recipient = [email protected]"
Save the file, and run service postfix reload

 

Also check main.cf and master.cf, and fix places where there still is the old domain name.