Alex JOST: > Am 04.01.2022 um 02:02 schrieb Ken Wright: > > $ 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? > > AFAICT you are lacking write permission for the user.
This program must NOT be writable by users. Wietse