Ken Wright:
> On Mon, 2022-01-03 at 20:50 -0500, Viktor Dukhovni wrote:
> > On Mon, Jan 03, 2022 at 08:02:20PM -0500, Ken Wright wrote:
> >
> > > $ sudo chmod g+s /usr/sbin/postdrop
> > > $ ls -la /usr/sbin/postdrop
> > > -r-xr-sr-x 1 postfix postdrop 22808 Sep? 7 02:58 /usr/sbin/postdrop
> > >
> > > Wietse, is this what's expected?
> >
> >
> > The expected permissions are recorded in the "postfix-files" file,
> > and applied by running (as root) "postfix set-permissions".
> >
> > If your Postfix software is packaged correctly by the OS
> > distribution, this will apply the relevant permissions to all
> > executables, directories and configuration files.
> >
> > If the distribution package is sloppy,? you may see warnings about
> > missing files, ...
>
> Okay, I ran sudo postfix set-permissions. It ran with no trouble
> whatsoever; no errors, warnings, nothing. Still getting the exact same
> messages in mail.log.
Then your file system is mounted with 'nosuid' option. Don't do that.
Wietse
