Hello. I was setting up ISPconfig trough this http://www.howtoforge.com/perfect-server-debian-wheezy-apache2-bind-dovecot-ispconfig-3 manual. ISPConfig is up and run perfect ! but there is some bugs about the mail. First of all, I did every step in this manual like it says there. So I did this: nano /etc/postfix/master.cf Uncomment the submission and smtps sections as follows (leave -o milter_macro_daemon_name=ORIGINATING as we don't need it): [...] submission inet n - - - - smtpd -o syslog_name=postfix/submission -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING smtps inet n - - - - smtpd -o syslog_name=postfix/smtps -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING [...] After when ISPconfig was up and running, I crated domain, and mailbox so I can send emails, and receive it. But when the master.cf is like that I showed you before I cannot send or receive emails. I have tried lot of things, so I tried to change the master.cf to this: # -o syslog_name=postfix/submission # -o smtpd_tls_security_level=encrypt # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #smtps inet n - - - - smtpd # -o syslog_name=postfix/smtps # -o smtpd_tls_wrappermode=yes # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING Now I can receive emails but not send it. Any idea what's wrong?