[exim] sieve filter output on pipe transport

Hello Everyone,

Exim 4.94.2.

At the transport (pipe transport) I am not able to get the sieve filter
output.
Is it possible to retrieve the output of the sieve filter performed on
"file = /filters/thisisasievefilter.sievesource" ?

# ROUTER
sieve_filter_virtual_user:
   allow_filter
   driver = redirect
   file = /filters/thisisasievefilter.sievesource
   file_transport = sieve_filter_lda

...
...
...

#TRANSPORT
sieve_filter_lda:
   drive = pipe
   command = /usr/local/libexec/dovecot/dovecot-lda -c
/etc/dovecot/dovecot.conf -e -k \
   -f "$sender_address" -a "$original_local_part@$original_domain" -d
"$local_part@$domain"
  ...
  ...


Thank You For Your Consideration

G