How to Install and Uninstall milter-greylist Package on Ubuntu 21.10 (Impish Indri)

Last updated: January 11,2025

1. Install "milter-greylist" package

Please follow the instructions below to install milter-greylist on Ubuntu 21.10 (Impish Indri)


    
        
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                sudo apt update
            
                    
    
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                sudo apt install
            
                        
                milter-greylist
            
                    
    
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2. Uninstall "milter-greylist" package

This guide covers the steps necessary to uninstall milter-greylist on Ubuntu 21.10 (Impish Indri):


    
        
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                sudo apt remove
            
                        
                milter-greylist
            
                    
    
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                sudo apt autoclean && sudo apt autoremove
            
                    
    
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3. Information about the milter-greylist package on Ubuntu 21.10 (Impish Indri)

Package: milter-greylist
Architecture: amd64
Version: 4.6.2-3
Priority: extra
Section: universe/mail
Origin: Ubuntu
Maintainer: Ubuntu Developers
Original-Maintainer: Debian QA Group
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 366
Depends: libc6 (>= 2.32), libcurl4 (>= 7.16.2), libgeoip1 (>= 1.6.12), libmilter1.0.1, libopendkim11 (>= 2.11.0~alpha), libspf2-2, init-system-helpers (>= 1.51), adduser (>= 3.11), lsb-base
Recommends: sendmail | postfix
Filename: pool/universe/m/milter-greylist/milter-greylist_4.6.2-3_amd64.deb
Size: 138388
MD5sum: 90d58730f4420b18099faf02db08d0e8
SHA1: 007dfcbb07646324aae851e89778ee57f2eb0bce
SHA256: 2394dd1a765136faa1948adef2fe7e62d8246342f1eff69d6b89f7900c81f806
SHA512: c09e20e834b98ef0cf85b3ce56f2ff2b5d8747c5488ea429fab9349811ba92f0e80f8aa82f87a0950b282131fbc0ff4cb1b1835d86f6a0bd1626e418c63f0f4c
Homepage: http://hcpnet.free.fr/milter-greylist/
Description-en: Greylist milter for sendmail
milter-greylist is a stand-alone milter written in C that implements the
greylist filtering method, as proposed by Evan Harris.
.
Greylisting works by assuming that unlike legitimate MTA, spam engines will
not retry sending their junk mail on a temporary error. The filter will
always temporarily reject mail on a first attempt, and to accept it after
some time has elapsed.
.
If spammers ever try to resend rejected messages, we can assume they will not
stay idle between the two sends (if they do, the spam problem would just be
solved). Odds are good that the spammer will send a mail to an honey pot
address and get blacklisted in several real-time distributed black list
before the second attempt.
Description-md5: e2bcfcf12d0c831c8d6900b5c70a65f7