[Dovecot] Deliver setgid failed: Operation not permitted

[Marcin Michal Jessa]

Blake Carver wrote:
> Hi all, I'm having trouble getting a new Postfix/Dovecot server up and running.
>
> I'm trying to run v1.0.3, using MySQL tables setup list postfix admin.
> This is a RHEL5 server.
> Getting this error
> tail /var/log/dovecot/dovecot-deliver.log
> deliver(none at example.com): Sep 04 19:44:15 Fatal: setgid(12) failed:
> Operation not permitted
> That 12 being my vmail user.
>
> I'm not exactly sure what's trying to setgid, nor how to fix it, any
> ideas would be appreciated.
>
>   
How do you deliver email with postfix ? I have:
mailbox_command = /usr/local/libexec/dovecot/deliver
And what user owns your directory where you store emails?
In my case it needs to be the user dovecot runs as.


Cheers,
Marcin.