I'm trying to configure mail forwarding through Gmail on CentOS 6 with postfix, following the blog http://carlton.oriley.net/blog/?p=31 and I think the blog has missed the step: # postmap /etc/postfix/sasl_passwd - as I've seen in the /var/log/maillog: postfix/smtp[1926]: fatal: open database /etc/postfix/sasl_passwd.db: No such file or directory postfix/master[1831]: warning: process /usr/libexec/postfix/smtp pid 1926 exit status 1 postfix/master[1831]: warning: /usr/libexec/postfix/smtp: bad command startup -- throttling But when I try to run postmap, I get postmap: fatal: open database /etc/postfix/sasl_passwd.db: Permission denied even though the postfix service is stopped, the SELinux is permissive and the file is writable: [root at preferans postfix]# ll -rw-r--r--. 1 root root 20K Jun 25 14:50 access -rw-r--r--. 1 root root 12K Jun 25 14:50 canonical -rw-r--r--. 1 root root 9.7K Jun 25 14:50 generic -rw-r--r--. 1 root root 18K Jun 25 14:50 header_checks -rw-r--r--. 1 root root 27K Oct 4 20:24 main.cf -rw-r--r--. 1 root root 27K Oct 4 20:23 main.cf.OLD -rw-r--r--. 1 root root 5.0K Jun 25 14:50 master.cf -rw-r--r--. 1 root root 6.7K Jun 25 14:50 relocated -rw-r--r--. 1 postfix root 113 Oct 4 20:25 sasl_passwd -rw-r--r--. 1 root root 13K Jun 25 14:50 transport -rw-r--r--. 1 root root 13K Jun 25 14:50 virtual Has anybody fought this problem already? Thank you Alex