Differentiate sending from LMTP and SMTP based on email address

[davide marchi]

Hi, my situation is this:
Smarthost with postfix forwarding with lmtp to dovecot residing on another
host for whole domain
Now i want to forward some emails of the same domain to same host but
instead of lmtp i want to use smtp
My question is how can i achieve this goal?
Thanks in advance.