[Dovecot] Why can NOT login as root

[John Allen]

As far as I recall, IMAP servers generally don't allow access to root.

According to the Dovecot wiki, this is hard-coded in the binary:
http://wiki.dovecot.org/MainConfig
see under "first_valid_uid"

If the root user is receiving emails, these need to be redirected to another user so they can be read via IMAP.

John

On 10/09/2011 10:04, jana1972 at centrum.cz wrote:
> Hi i use Dovecot and it works ok for users except for root user.
> It is impossible to login as  root
> Here is a log
>
>
> Sep 10 10:15:44 auth: Debug: Loading modules from directory:
> /usr/local/lib/dovecot/auth
> Sep 10 10:15:44 auth: Debug: auth client connected (pid=18077)
> Sep 10 10:15:44 auth: Debug: client in: AUTH	1	PLAIN	service=imap	
> secured	lip=212.97.133.82	rip=212.97.133.82	lport=143	
> rport=34645	resp=<hidden>
> Sep 10 10:15:44 auth: Debug: Loading modules from directory:
> /usr/local/lib/dovecot/auth
> Sep 10 10:15:44 auth: Debug: pam(root,212.97.133.82): lookup service=dovecot
> Sep 10 10:15:44 auth: Debug: pam(root,212.97.133.82): #1/1 style=1
> msg=Password:
> Sep 10 10:15:44 auth: Debug: client out: OK	1	user=root
> Sep 10 10:15:44 auth: Debug: master in: REQUEST	2889482241	18077	1	
> 3500554cf70742dfc0515671c7671bbd
> Sep 10 10:15:44 auth: Debug: passwd(root,212.97.133.82): lookup
> Sep 10 10:15:44 auth: Debug: master out: USER	2889482241	root	
> system_groups_user=root	uid=0	gid=0	home=/root
> Sep 10 10:15:44 imap-login: Info: Login: user=<root>, method=PLAIN,
> rip=212.97.133.82, lip=212.97.133.82, mpid=18082, secured
> Sep 10 10:15:44 imap: Error: user root: Invalid settings in userdb: userdb
> returned 0 as uid
> Sep 10 10:15:44 imap: Error: Invalid user settings. Refer to server log for
> more information.
>
>
> Can anyone help?
> Thanks
> LL.