How To Install opensmtpd-extras-experimental on Ubuntu 18.04
Introduction
In this tutorial we learn how to install opensmtpd-extras-experimental on Ubuntu 18.04.
What is opensmtpd-extras-experimental
opensmtpd-extras-experimental is:
This package provides experimental addons for OpenSMTPD. Using these may cause your OpenSMTPD installation to become unstable, insecure, or worse. Proceed with caution!
Please see each for a description of additional dependencies.
- Filters:
- clamav: filter mail through clamd [clamav-daemon]
- dkim-signer: add DKIM signatures to headers
- dnsbl: perform DNSBL checks
- monkey: randomly accept mail with a probability of 70%
- pause: pause on new connections to avoid “slamming” attacks
- regex: filter mail using regex
- spamassassin: filter mail through SpamAssassin’s spamd [spamassassin]
- trace: trace SMTP sessions This package does not yet provide the language bindings (Python, Perl, Lua, etc.) for implementing additional filters.
There are three methods to install opensmtpd-extras-experimental on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install opensmtpd-extras-experimental Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install opensmtpd-extras-experimental using apt-get by running the following command:
sudo apt-get -y install opensmtpd-extras-experimental
Install opensmtpd-extras-experimental Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install opensmtpd-extras-experimental using apt by running the following command:
sudo apt -y install opensmtpd-extras-experimental
Install opensmtpd-extras-experimental Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install opensmtpd-extras-experimental using aptitude by running the following command:
sudo aptitude -y install opensmtpd-extras-experimental
How To Uninstall opensmtpd-extras-experimental on Ubuntu 18.04
To uninstall only the opensmtpd-extras-experimental package we can use the following command:
sudo apt-get remove opensmtpd-extras-experimental
Uninstall opensmtpd-extras-experimental And Its Dependencies
To uninstall opensmtpd-extras-experimental and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove opensmtpd-extras-experimental
Remove opensmtpd-extras-experimental Configurations and Data
To remove opensmtpd-extras-experimental configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge opensmtpd-extras-experimental
Remove opensmtpd-extras-experimental configuration, data, and all of its dependencies
We can use the following command to remove opensmtpd-extras-experimental configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge opensmtpd-extras-experimental
References
Summary
In this tutorial we learn how to install opensmtpd-extras-experimental package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
