[Dovecot] Could use some help setting Dovecot up for the first time

[Timo Sirainen]

On 7.3.2010, at 21.18, joe wrote:

> Mar 07 19:14:55 deliver(test at fasti.net): Fatal: setgid(12) failed with euid=101(vmail), gid=6(mail), egid=6(mail): Operation not permitted

Your userdb says mails should be accessed with gid=12, but you're calling deliver from Postfix with gid=6. Change either one of them to the other (userdb or pipe in master.cf).