On Fri, Sep 25, 2015 at 07:21:32PM +0300, Michael Peter wrote: > > What version of Postfix are you using? > > postfix/master[7500]: reload -- version 2.6.6, configuration /etc/postfix
That's nearly seven years old. When you enable the Web PKI by setting smtp_tls_CAfile, that version of Postfix will also drag in all the default system certificate files. You can if you wish set: # postconf -e "import_environment = $(postconf -h import_environment) SSL_CERT_FILE=/etc/postfix/certfile SSL_CERT_DIR=/etc/postfix/certdir" and create a corresponding empty file and empty directory. That will hide the system default locations while you're preparing to upgrade to something less ancient. -- Viktor.