[falko]

You have this section:

# Mail from Amavis
#127.0.0.1:10025 inet n - - - - smtpd
# -o content_filter= amavis:[127.0.0.1]:10024
# -o local_recipient_maps=
# -o relay_recipient_maps=
# -o smtpd_restriction_classes=
# -o smtpd_delay_reject=no
# -o smtpd_client_restrictions=permit_mynetworks,reject
# -o smtpd_helo_restrictions=
# -o smtpd_sender_restrictions=
# -o smtpd_recipient_restrictions=permit_mynetworks,reject
# -o smtpd_data_restrictions=reject_unauth_pipelining
# -o smtpd_end_of_data_restrictions=
# -o mynetworks=127.0.0.0/8
# -o smtpd_error_sleep_time=0
# -o smtpd_soft_error_limit=1001
# -o smtpd_hard_error_limit=1000
# -o smtpd_client_connection_count_limit=0
# -o smtpd_client_connection_rate_limit=0
#-o receive_override_options=no_header_body_checks,no_unknown_recipient_checks
 -o receive_override_options=no_unknown_recipient_che cks,no_header_body_check

I think you need to comment out the last line

 -o receive_override_options=no_unknown_recipient_che cks,no_header_body_check

as well.