or, File Permissions on Directories Matter Too
I'm filtering my mail with Sieve via Dovecot, and the filtering piece has been working, but redirection has not. I noticed the error message from dovecot-sieve first:
dovecot: lmtp(me@nathanmorrison.net): Error: ###: sieve: msgid=<###>:
failed to redirect message to <shop@nathanmorrison.net>:
Failed to execute sendmail (temporary failure)
Then I found this postfix error:
postfix/sendmail[15602]: fatal: open /etc/postfix/main.cf: Permission denied
OK, so sendmail needs access to a postfix config file.
I figure even a low-level Linux acolyte like me should be able to figure
out file permissions, right?
Trouble is, ls -l /etc/postfix/main.cf shows
-rw-r--r-- 1 root root 2551 Jun 6 21:03 /etc/postfix/main.cf
Wait, that should be readable by everyone!
Now I'm stumped.
After a bit of Googling, though, I finally find someone
who illustrates my specific problem.
Checking ls -ld /etc/postfix:
drwxr-x--- 3 root root 4096 Nov 13 20:59 /etc/postifx/
Aha! The directory needs to be readable and executable by everyone
in order for the dovecot user to be able to get at its contacts.
chmod 755 /etc/postfix should fix this.
Now I should be able to have dovecot-sieve redirect my mail
from one box to another!
Some helpful links: