<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">Finally I found a workaround to not depend on sendmail to forward messages using sieve:</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">In postfix main.cf I have:</div><div class=""><br class=""></div><div class="">authorized_submit_users = root, filter</div><div class=""><br class=""></div><div class=""><div class="">(I want only root and filter to use sendmail and block other users to send e-mails from system accounts. Only allow users to send e-mails from virtual accounts and after smtp authentication. Username filter is used for bogofilter and needs access to sendmail)</div></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">And in dovecot.conf:</div><div class=""><br class=""></div><div class="">submission_host = 138.201.248.xxx</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">The same workaround maybe works for <span style="white-space: pre-wrap; background-color: rgb(255, 255, 255);" class="">NoNewPrivileges too as the </span>authorized_submit_users setting in postfix has similar result.</div></body></html>