Lab
A Cloud Guru

Configure and Use an SMTP Server for Email Forwarding

Using a system to forward email to another system or for an entire domain is a common use case for SMTP. In this activity, you will get a chance to install and work with SMTP as a forwarding agent in order to better understand the flow of messages between systems.

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Path Info

Level

Intermediate

Duration

1h 0m

Published

Nov 12, 2018

Challenge

Install Postfix Client and Server Utilities
In order to install the packages we need for the SMTP server and client, we need to install postfix, telnet and mailx like so:
```
sudo yum install -y mailx telnet postfix
```
Challenge

Enable Email Forwarding on Server from Host Name/IP Address
You will need to use the postconf utility to edit several variables in the /etc/postfix/main.cf configuration file, ther are:
```
postconf -e "mydestination = 10.0.1.100, localhost.localdomain, localhost"
postconf -e "mynetworks = 127.0.0.0/8, 10.0.1.0/24"
postconf -e "inet_interfaces = all"
```

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.