Rolf E. Sonneveld:
> Wietse Venema wrote:
> > Rolf E. Sonneveld:
> >
> >> Hi,
> >>
> >> running Postfix 2.4.5
> >>
> >> According to http://www.postfix.org/pipe.8.html it is possible to define
> >> a 'user:group' in a pipe entry in master.cf:
> >>
> >>
> >>> *user*=/username/:/groupname/
> >>> Execute the external command with the rights of the
> >>> specified /username/. The software refuses to exe-
> >>>
> >
> > This text could be more precise: Postfix executes the external
> > command with the user ID and group ID of /username/.
> >
> >
> >>> cute commands with root privileges, or with the
> >>> privileges of the mail system owner. If /groupname/
> >>> is specified, the corresponding group ID is used
> >>> instead of the group ID of /username/.
> >>>
> >
> > Note, it says "the group ID of username" meaning it uses only one.
> >
>
> thanks for your answer. Is there a way to file a 'request for
> enhancement' to ask for support of multiple groups in a future version
> of Postfix?
You can ask but I don't promise it will be implemented.
System V.2 mail relied on group write permissions. It was utterly
easy for users to screw up file permissions and break mail. It also
is no good within Postfix because Postfix runs with an umask of 077.
Wietse
