I think there are not enough write permissions. I have build a directory: /var/log/dovecot with user and group permissions for the dovecot user: drwxr-xr-x and the log file: /var/log/dovecot/dovecot.log with user and group permissions for the dovecot user: -rw-r--r-- Viele Grüße Helmut Drodofsky Internet XS Service GmbH Heßbrühlstraße 15 70565 Stuttgart Geschäftsführung Dr.-Ing. Roswitha Hahn-Drodofsky HRB 21091 Stuttgart USt.ID: DE190582774 Tel. 0711 781941 0 Fax: 0711 781941 79 Mail: info at internet-xs.de www.internet-xs.de Am 11.06.2012 12:25, schrieb Muhammad A. Fatahna: >> man touch >> man chmod >> man chown > file has ready, chmod use 755 and chown use vmail, this below : > > [root at mail ~]# ls -la /etc/dovecot* > -rwxr-xr-x 1 vmail vmail 42989 Jun 11 17:08 /etc/dovecot.conf > -rwxr-xr-x 1 vmail vmail 181 Jun 11 15:27 /etc/dovecot-sql.conf > [root at mail ~]# > > [root at mail ~]# ls -la /var/log/dovecot.log > -rwxr-xr-x 1 vmail vmail 1180 Jun 11 16:42 /var/log/dovecot.log > [root at mail ~]# > > there is something wrong on my configuration >