[Dovecot] dovecot/deliver ... Can't open log file /var/log/dovecot/error.log: Permission denied

[Phil Howard]

On Mon, May 10, 2010 at 15:07, Romer Ventura <rventura at h-st.com> wrote:

> I dont know what else.
>
> I tried to chwon postfix:postfix, vmail:vmail, postfix:vmail, vmail:postfix
> and none of them worked. I had to go with chmod 777
>

I believe that is because Postfix is running dovecot/deliver as username
derived from the email address.  Are all your users in your /etc/passwd
file?