Complete Guide: Installing lsb-invalid-mta on Ubuntu 16.04 LTS (Xenial Xerus) 2024

1. Install "lsb-invalid-mta" package

This tutorial shows how to install lsb-invalid-mta on Ubuntu 16.04 LTS (Xenial Xerus)


    
        
            $
        

        
            
                sudo apt update
            
                    
    
    Copied


    
        
            $
        

        
            
                sudo apt install
            
                        
                lsb-invalid-mta
            
                    
    
    Copied

2. Uninstall "lsb-invalid-mta" package

This is a short guide on how to uninstall lsb-invalid-mta on Ubuntu 16.04 LTS (Xenial Xerus):


    
        
            $
        

        
            
                sudo apt remove
            
                        
                lsb-invalid-mta
            
                    
    
    Copied


    
        
            $
        

        
            
                sudo apt autoclean && sudo apt autoremove
            
                    
    
    Copied

3. Information about the lsb-invalid-mta package on Ubuntu 16.04 LTS (Xenial Xerus)

Package: lsb-invalid-mta
Architecture: all
Version: 9.20160110ubuntu0.2
Priority: extra
Section: universe/misc
Source: lsb
Origin: Ubuntu
Maintainer: Ubuntu Developers
Original-Maintainer: Debian LSB Team
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 34
Provides: mail-transport-agent
Suggests: lsb
Conflicts: cups-filters-invalid-mta, mail-transport-agent
Replaces: cups-filters-invalid-mta
Filename: pool/universe/l/lsb/lsb-invalid-mta_9.20160110ubuntu0.2_all.deb
Size: 5670
MD5sum: cefd34cca44c3129919d3bed8acff878
SHA1: b7106c8054886d2af27e674185e77f3332977d3a
SHA256: b518df1332e4ae30ae0ae1679f46148b73a58b6e2e39714c19d4e5f07cac82fc
SHA512: 3767f9091df966a4077df8b1618dc26c65f40ce25bd73714aa060958748ae7a79759cdd4fec1fe7473f7b1c808d33c49499436459ec36376a55946ba30cf14ac
Homepage: http://www.linuxfoundation.org/collaborate/workgroups/lsb
Description-en: Linux Standard Base sendmail dummy
The Linux Standard Base (http://www.linuxbase.org/) is a standard
core system that third-party applications written for Linux can
depend upon.
.
This package contains nothing else than a fake /usr/sbin/sendmail
command to fulfill the LSB's requirement of providing this command without
requiring an MTA to get installed, which once introduces a daemon which
can cause security problems and second, users get asked questions about
how they want their MTA configured when in reality they simply wanted to
install a desktop application or a printer driver, but the dependency on
LSB compliance pulls in an MTA with the installation.
.
The LSB requirement on /usr/sbin/sendmail comes from old times where Linux
and Unix machines had all fixed IPs and did server tasks in data centers.
Today's typical desktop Linux machines do not do local e-mail any more as
users use external e-mail services.
.
The /usr/sbin/sendmail always exits with exit status -1 (255) and sends a
warning message to stderr, so that if a program actually tries to send e-mail
via the sendmail command the user gets note.
Description-md5: 33de1113b88f03d989868cbc67ba462c