/etc/init.d/dovecot restart
doveconf: Warning: NOTE: You can get a new clean config file with: doveconf -n > dovecot-new.conf
doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:35: add auth_ prefix to all settings inside auth {} and remove the auth {} section completely
doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:37: passdb sql {} has been replaced by passdb { driver=sql }
doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:41: userdb prefetch {} has been replaced by userdb { driver=prefetch }
doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:44: userdb sql {} has been replaced by userdb { driver=sql }
doveconf: Warning: Obsolete setting in /etc/dovecot/dovecot.conf:48: auth_user has been replaced by service auth { user }
doveconf: Error: ssl enabled, but ssl_cert not set
doveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf: ssl enabled, but ssl_cert not set
Restarting IMAP/POP3 mail server: dovecotdoveconf: Fatal: Error in configuration file /etc/dovecot/dovecot.conf line 29: postmaster_address: Can't open file postmaster-address>: No such file or directory
failed!
