How To Install courier-filter-perl on Ubuntu 22.04
Introduction
In this tutorial we learn how to install courier-filter-perl
on Ubuntu 22.04.
What is courier-filter-perl
courier-filter-perl is:
Courier::Filter implements the Courier MTA’s courierfilter interface as a framework for mail filter modules. Authors of filter modules can concentrate on writing the actual filter logic without having to care about the usual low-level details of the courierfilter interface. Logging to various facilities is also supported.
Courier::Filter allows multiple filter modules to be installed in stacked and hierarchically grouped configurations. Also, modules’ polarity can be reversed, so some modules can be used for explicitly accepting messages while others are used in the traditional way for rejecting messages.
The following filter modules are included:
- BlankBody: matching of blank bodies (a stupid spammer symptom)
- DNSBL: matching of calling MTA’s IP address against DNS black-lists
- SPF: authentication of sender addresses in inbound messages
- SPFout: authentication of sender addresses in outbound messages
- Envelope: matching of RFC 2821 message envelope fields
- Header: matching of RFC 2822 message header fields
- FakeDate: detection of implausible and malformed date header fields
- ClamAVd: malware detection using the ClamAV scanner
- SpamAssassin: spam detection using SpamAssassin
- Parts: matching of MIME parts and ZIP archive contents
- SendCopy: sending message copies to additional recipients
There are three methods to install courier-filter-perl
on Ubuntu 22.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install courier-filter-perl Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install courier-filter-perl
using apt-get
by running the following command:
sudo apt-get -y install courier-filter-perl
Install courier-filter-perl Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install courier-filter-perl
using apt
by running the following command:
sudo apt -y install courier-filter-perl
Install courier-filter-perl 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 courier-filter-perl
using aptitude
by running the following command:
sudo aptitude -y install courier-filter-perl
How To Uninstall courier-filter-perl on Ubuntu 22.04
To uninstall only the courier-filter-perl
package we can use the following command:
sudo apt-get remove courier-filter-perl
Uninstall courier-filter-perl And Its Dependencies
To uninstall courier-filter-perl
and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove courier-filter-perl
Remove courier-filter-perl Configurations and Data
To remove courier-filter-perl
configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge courier-filter-perl
Remove courier-filter-perl configuration, data, and all of its dependencies
We can use the following command to remove courier-filter-perl
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge courier-filter-perl
References
Summary
In this tutorial we learn how to install courier-filter-perl
package on Ubuntu 22.04 using different package management tools: apt
, apt-get
and aptitude
.