If you are looking for a way to add Postfix to a Docker container, you are in luck! Our experts have put together this guide to help you get started. Our Docker Support team is here to lend a hand with your queries and issues.

How to add Postfix to Docker Container

Before we begin adding Postfix to a Docker container, we have to ensure that we have permission to start the container. Then, we have to start up a new container with a base image using the following command:

$ docker run -i -t base /bin/bash

At this point, we have to update the system packages :

$ apt-get update

Now, we will move on to Postfix installation as seen below:

1. First, we have to run this command:

   $ apt-get install -y postfix
2. Next, click OK when prompted during the installation.
3. After that, select Internet site as the General type of mail configuration and press enter for the System mail option.
4. Then, click Ok to continue.

After installing Postfix, it is time to head back to the host to commit the new image. We can get hold of the image with the following command:

$ docker ps -a

Once we get hold of the ID, we can commit as seen below:

$ docker commit 3DE478808e21 vcoisne/postfix

In the above example, 3DE478808e21 is the image ID.

Next, we will spawn a new container from this specific image and run bash inside. After that we can verify that Postfix installation is successful with this command:

$ postfix start

This is how we can successfully add Postfix to a Docker container, if you run into any trouble during the process, contact our experts for further assistance.

[Need assistance with a different issue? Our team is available 24/7.]

Conclusion

To conclude, our Support Engineers demonstrated how to add Postfix to a Docker container.