Tips & Techniques

33 posts

Microsoft 365 Forwarding Mail to External Domains

The default behavior for Microsoft 365 is to allow users to forward mail to internal recipients only.  The setting “Automatic forwarding” controls this. Security > Policies & rules > Threat Policies > Anti-spam policies > Anti-spam outbound policy (Default) The problem, however, is the Outlook Web Interface will still allow […]

Ubuntu 16.04 PHP Garbage Collection is Garbage

I recently upgraded an Ubuntu 14.04 Server to 16.04. I immediately noticed the root mail being spammed with error e-mails as below: From: Cron Daemon [mailto:root@jack] Sent: Wednesday, March 13, 2019 4:09 PM To: root@jack Subject: Cron <root@jack> [ -x /usr/lib/php/sessionclean ] && /usr/lib/php/sessionclean /usr/lib/php/sessionclean: 37: /usr/lib/php/sessionclean: arithmetic expression: expecting […]