Amazon Simple Email Service (SES) is a hosted cloud-based email service to send and receive email using your email addresses and domains. Typically SES is used for sending bulk email or routing emails without hosting MTA. One can use the CLI or server-side programming languages such as PHP or Python to transfer an email via SES. This quick tutorial will show you how to route all outgoing emails with Postfix and Amazon AWS SES on Red Hat Enterprise Linux (RHEL) or CentOS version 8.
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I am a big fan of LXD, a next-generation Linux system container manager and default on Ubuntu. It allows me to run desktop apps or server apps in an isolated environment. Ubuntu provides LXD with robust security in mind. However, this might lead to undesired side effects, such as individual packages under OpenSUSE or CentOS Linux may not be updated. One such package is the filesystem package. Let us see how to fix Error: Transaction failed when you try to update filesystem package under CentOS, OpenSUSE, and other Linux containers running under LXD.
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