dovecot - Apr 2020 - Disabling system users from mail

I'm using dovecot 2.2.36 on CentOS 7.7.
My configurations are (dovecot -n):

disable_plaintext_auth = no
first_valid_uid = 1000
mail_location = maildir:~/Maildir
mbox_write_locks = fcntl
namespace inbox {
  inbox = yes
  location   mailbox Drafts {
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Trash {
    special_use = \Trash
  }
  prefix }
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0666
    user = postfix
  }
}
ssl = required
ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
ssl_key =  # hidden, use -P to show it

I want to disable accounts for system users. Only virtual users will have
accounts (not configured yet). Is this possible?

Thanks,
Mura Andrei
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> On 04/04/2020 14:06 Andrei Petru Mura <mapandrei at gmail.com> wrote:
> 
> 
> I'm using dovecot 2.2.36 on CentOS 7.7.
> My configurations are (dovecot -n):
> 
<snip/>
> 
> I want to disable accounts for system users. Only virtual users will have
accounts (not configured yet). Is this possible?
> 
> Thanks,
> Mura Andrei
Hi!

System users are only enabled if you use pam/passwd/shadow drivers. They are not
enabled by default.

Aki

Hi Aki,

<snip/>
>
Do you mean anything via this?
>
> >
> > I want to disable accounts for system users. Only virtual users will
> have accounts (not configured yet). Is this possible?
> >
> > Thanks,
> > Mura Andrei
>
> Hi!
>
> System users are only enabled if you use pam/passwd/shadow drivers. They
> are not enabled by default.
>
I don't think I'm using this drivers. Do I? (I suppose provided
configuration should reflect this).

Andrei
>
> Aki
>
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