----- Message from Bastian Blank
<bastian+postfix-users=postfix....@waldi.eu.org> ---------
Date: Thu, 17 Jun 2021 07:59:10 +0200
From: Bastian Blank <bastian+postfix-users=postfix....@waldi.eu.org>
Subject: Re: Mail not being sent to file
To: postfix-users@postfix.org
On Wed, Jun 16, 2021 at 05:59:16PM -0700, Jeremiah Rothschild wrote:
To triple check my sanity, I created a brand new VM and confirmed the
behavior.
So anyone should be able to easily reproduce this.
* Fresh CentOS 8.4 install
* Choose "Minimal" base environment
* Defaults for everything else
# yum -y update
# yum -y install postfix mailx
# systemctl start postfix
# echo "somealias: /tmp/somefile" >> /etc/aliases && newaliases
# echo "test" | mail somealias@localhost
# ls /tmp/somefile
Just don't assume /tmp or /var/tmp are the same between services.
Postfix on RHEL 8 is configured with private /tmp. To be exact:
| PrivateTmp=true
| CapabilityBoundingSet=~ CAP_NET_ADMIN CAP_SYS_ADMIN CAP_SYS_BOOT
CAP_SYS_MODULE
| ProtectSystem=true
| PrivateDevices=true
Bastian
----- End message from Bastian Blank
<bastian+postfix-users=postfix....@waldi.eu.org> -----
Yup.
Using a directory other than /tmp works fine on RHEL8:
[root@emp87 ~]# chmod 1777 /home/simon
[root@emp87 ~]# echo "somealias: /home/simon/somefile" >> /etc/aliases
&& newaliases
[root@emp87 ~]# echo "test" | mail somealias@localhost
[root@emp87 ~]# cd /home/simon
[root@emp87 simon]# cat /home/simon/somefile
{content as expected}
Simon.
--
Simon Wilson
M: 0400 12 11 16
