How To Install esmtp on CentOS 8

esmtp is User configurable send-only Mail Transfer Agent

Introduction

In this tutorial we learn how to install esmtp on CentOS 8.

What is esmtp

ESMTP is a user configurable relay-only Mail Transfer Agent (MTA) with a sendmail-compatible syntax. It’s based on libESMTP supporting the AUTH (including the CRAM-MD5 and NTLM SASL mechanisms) and the StartTLS SMTP extensions.

We can use yum or dnf to install esmtp on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install esmtp.

Install esmtp on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install esmtp using dnf by running the following command:

sudo dnf -y install esmtp

Install esmtp on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install esmtp using yum by running the following command:

sudo yum -y install esmtp

How To Uninstall esmtp on CentOS 8

To uninstall only the esmtp package we can use the following command:

sudo dnf remove esmtp

esmtp Package Contents on CentOS 8

/usr/bin/esmtp
/usr/bin/esmtp-wrapper
/usr/bin/mailq
/usr/lib/.build-id
/usr/lib/.build-id/ef
/usr/lib/.build-id/ef/1dba2990815aefca931e54e005e26f37376ef7
/usr/lib/sendmail
/usr/sbin/sendmail
/usr/share/doc/esmtp
/usr/share/doc/esmtp/AUTHORS
/usr/share/doc/esmtp/COPYING
/usr/share/doc/esmtp/NEWS
/usr/share/doc/esmtp/README
/usr/share/doc/esmtp/TODO
/usr/share/doc/esmtp/mutt-esmtp
/usr/share/doc/esmtp/sample.esmtprc
/usr/share/man/man1/esmtp.1.gz
/usr/share/man/man1/mailq.1.gz
/usr/share/man/man5/esmtprc.5.gz
/usr/share/man/man8/sendmail.8.gz

References

Summary

In this tutorial we learn how to install esmtp on CentOS 8 using yum and dnf.