Software Packages in "bionic-updates", Subsection mail

amavisd-new (1:2.11.0-1ubuntu1.1): Interface between MTA and virus scanner/content filters
amavisd-new-postfix (1:2.11.0-1ubuntu1.1) [universe]: part of Ubuntu mail stack provided by Ubuntu server team
courier-authdaemon (0.68.0-4ubuntu0.1) [universe]: Courier authentication daemon
courier-authlib (0.68.0-4ubuntu0.1) [universe]: Courier authentication library
courier-authlib-dev (0.68.0-4ubuntu0.1) [universe]: Development libraries for the Courier authentication library
courier-authlib-ldap (0.68.0-4ubuntu0.1) [universe]: LDAP support for the Courier authentication library
courier-authlib-mysql (0.68.0-4ubuntu0.1) [universe]: MySQL support for the Courier authentication library
courier-authlib-pipe (0.68.0-4ubuntu0.1) [universe]: External authentication support for the Courier authentication library
courier-authlib-postgresql (0.68.0-4ubuntu0.1) [universe]: PostgreSQL support for the Courier authentication library
courier-authlib-sqlite (0.68.0-4ubuntu0.1) [universe]: SQLite 3 support for the Courier authentication library
courier-authlib-userdb (0.68.0-4ubuntu0.1) [universe]: userdb support for the Courier authentication library
dovecot-core (1:2.2.33.2-1ubuntu4.2): secure POP3/IMAP server - core files
dovecot-dev (1:2.2.33.2-1ubuntu4.2): secure POP3/IMAP server - header files
dovecot-gssapi (1:2.2.33.2-1ubuntu4.2) [universe]: secure POP3/IMAP server - GSSAPI support
dovecot-imapd (1:2.2.33.2-1ubuntu4.2): secure POP3/IMAP server - IMAP daemon
dovecot-ldap (1:2.2.33.2-1ubuntu4.2) [universe]: secure POP3/IMAP server - LDAP support
dovecot-lmtpd (1:2.2.33.2-1ubuntu4.2) [universe]: secure POP3/IMAP server - LMTP server
dovecot-managesieved (1:2.2.33.2-1ubuntu4.2): secure POP3/IMAP server - ManageSieve server
dovecot-mysql (1:2.2.33.2-1ubuntu4.2) [universe]: secure POP3/IMAP server - MySQL support
dovecot-pgsql (1:2.2.33.2-1ubuntu4.2) [universe]: secure POP3/IMAP server - PostgreSQL support
dovecot-pop3d (1:2.2.33.2-1ubuntu4.2): secure POP3/IMAP server - POP3 daemon
dovecot-sieve (1:2.2.33.2-1ubuntu4.2): secure POP3/IMAP server - Sieve filters support
dovecot-solr (1:2.2.33.2-1ubuntu4.2) [universe]: secure POP3/IMAP server - Solr support
dovecot-sqlite (1:2.2.33.2-1ubuntu4.2) [universe]: secure POP3/IMAP server - SQLite support
enigmail (2:2.0.8-1~ubuntu0.18.04.2) [universe]: GPG support for Thunderbird and Debian Icedove
exim4 (4.90.1-1ubuntu1.1): metapackage to ease Exim MTA (v4) installation
exim4-base (4.90.1-1ubuntu1.1): support files for all Exim MTA (v4) packages
exim4-config (4.90.1-1ubuntu1.1): configuration for the Exim MTA (v4)
exim4-daemon-heavy (4.90.1-1ubuntu1.1): Exim MTA (v4) daemon with extended features, including exiscan-acl
exim4-daemon-light (4.90.1-1ubuntu1.1): lightweight Exim MTA (v4) daemon
exim4-dev (4.90.1-1ubuntu1.1): header files for the Exim MTA (v4) packages
eximon4 (4.90.1-1ubuntu1.1) [universe]: monitor application for the Exim MTA (v4) (X11 interface)
isync (1.3.0-1ubuntu0.18.04.0) [universe]: IMAP and MailDir mailbox synchronizer
mail-stack-delivery (1:2.2.33.2-1ubuntu4.2): mail server delivery agent stack provided by Ubuntu server team
mutt (1.9.4-3ubuntu0.1): text-based mailreader supporting MIME, GPG, PGP and threading
postfix (3.3.0-1ubuntu0.2): High-performance mail transport agent
postfix-cdb (3.3.0-1ubuntu0.2): CDB map support for Postfix
postfix-ldap (3.3.0-1ubuntu0.2): LDAP map support for Postfix
postfix-lmdb (3.3.0-1ubuntu0.2) [universe]: LMDB map support for Postfix
postfix-mysql (3.3.0-1ubuntu0.2): MySQL map support for Postfix
postfix-pcre (3.3.0-1ubuntu0.2): PCRE map support for Postfix
postfix-pgsql (3.3.0-1ubuntu0.2): PostgreSQL map support for Postfix
postfix-sqlite (3.3.0-1ubuntu0.2) [universe]: SQLite map support for Postfix
sa-compile (3.4.2-0ubuntu0.18.04.1): Tools for compiling SpamAssassin rules into C
spamassassin (3.4.2-0ubuntu0.18.04.1): Perl-based spam filter using text analysis
spamc (3.4.2-0ubuntu0.18.04.1): Client for SpamAssassin spam filtering daemon
thunderbird (1:60.5.1+build2-0ubuntu0.18.04.1): Email, RSS and newsgroup client with integrated spam filter
thunderbird-dev (1:60.5.1+build2-0ubuntu0.18.04.1): Email, RSS and newsgroup client - development files
thunderbird-gnome-support (1:60.5.1+build2-0ubuntu0.18.04.1): Email, RSS and newsgroup client - GNOME support
thunderbird-locale-ca (1:60.5.1+build2-0ubuntu0.18.04.1): Catalan; Valencian language pack for Thunderbird
thunderbird-locale-cs (1:60.5.1+build2-0ubuntu0.18.04.1): Czech language pack for Thunderbird
thunderbird-locale-da (1:60.5.1+build2-0ubuntu0.18.04.1): Danish language pack for Thunderbird
thunderbird-locale-de (1:60.5.1+build2-0ubuntu0.18.04.1): German language pack for Thunderbird
thunderbird-locale-el (1:60.5.1+build2-0ubuntu0.18.04.1): Greek language pack for Thunderbird
thunderbird-locale-en-gb (1:60.5.1+build2-0ubuntu0.18.04.1): Transitional English language pack for Thunderbird
thunderbird-locale-es-ar (1:60.5.1+build2-0ubuntu0.18.04.1): Transitional Spanish language pack for Thunderbird
thunderbird-locale-es-es (1:60.5.1+build2-0ubuntu0.18.04.1): Transitional Spanish language pack for Thunderbird
thunderbird-locale-eu (1:60.5.1+build2-0ubuntu0.18.04.1): Basque language pack for Thunderbird
thunderbird-locale-fi (1:60.5.1+build2-0ubuntu0.18.04.1): Finnish language pack for Thunderbird
thunderbird-locale-fr (1:60.5.1+build2-0ubuntu0.18.04.1): French language pack for Thunderbird
thunderbird-locale-hu (1:60.5.1+build2-0ubuntu0.18.04.1): Hungarian language pack for Thunderbird
thunderbird-locale-it (1:60.5.1+build2-0ubuntu0.18.04.1): Italian language pack for Thunderbird
thunderbird-locale-ja (1:60.5.1+build2-0ubuntu0.18.04.1): Japanese language pack for Thunderbird
thunderbird-locale-mk (1:60.5.1+build2-0ubuntu0.18.04.1): Transitional package for unavailable language
thunderbird-locale-nb-no (1:60.5.1+build2-0ubuntu0.18.04.1): Transitional Norwegian language pack for Thunderbird
thunderbird-locale-nl (1:60.5.1+build2-0ubuntu0.18.04.1): Dutch; Flemish language pack for Thunderbird
thunderbird-locale-pa-in (1:60.5.1+build2-0ubuntu0.18.04.1): Transitional Punjabi language pack for Thunderbird
thunderbird-locale-pl (1:60.5.1+build2-0ubuntu0.18.04.1): Polish language pack for Thunderbird
thunderbird-locale-pt-br (1:60.5.1+build2-0ubuntu0.18.04.1): Transitional Portugese language pack for Thunderbird
thunderbird-locale-ru (1:60.5.1+build2-0ubuntu0.18.04.1): Russian language pack for Thunderbird
thunderbird-locale-sk (1:60.5.1+build2-0ubuntu0.18.04.1): Slovak language pack for Thunderbird
thunderbird-locale-sl (1:60.5.1+build2-0ubuntu0.18.04.1): Slovenian language pack for Thunderbird
thunderbird-locale-sv-se (1:60.5.1+build2-0ubuntu0.18.04.1): Transitional Swedish language pack for Thunderbird
thunderbird-locale-tr (1:60.5.1+build2-0ubuntu0.18.04.1): Turkish language pack for Thunderbird
thunderbird-locale-zh-cn (1:60.5.1+build2-0ubuntu0.18.04.1): Transitional Simplified Chinese language pack for Thunderbird