The list of available plugins is at:
l /var/www/imscp/gui/public/tools/webmail/plugins/ | awk '{print $9;}'
acl
additional_message_headers
archive
autologon
database_attachments
debug_logger
emoticons
enigma
example_addressbook
filesystem_attachments
help
hide_blockquote
http_authentication
imscp_pw_changer
jqueryui
managesieve
markasjunk
new_user_dialog
new_user_identity
newmail_notifier
password
redundant_attachments
serverinfo
show_additional_headers
squirrelmail_usercopy
subscriptions_option
userinfo
vcard_attachments
virtuser_file
virtuser_query
Plugins are activated if the name of their directory is added to an array in the roundcube configuration file located at /var/www/imscp/gui/public/tools/webmail/config/main.inc.php
By default, i-mscp activates only one of those plugins: imscp_pw_changer
To activate the plugins additional_message_headers and archive, I would change the line:
$rcmail_config[‘plugins’] = array(‘imscp_pw_changer’);
To:
$rcmail_config[‘plugins’] = array(‘imscp_pw_changer’,’additional_message_headers’,’archive’);
To get the linenumber of this line, just type:
grep -in 'plugins' /var/www/imscp/gui/public/tools/webmail/config/main.inc.php
Just restart apache2 and refresh your browser and you will see that the plugin has been activated. The complete list of plugins can be found at http://trac.roundcube.net/wiki/Plugin_Repository
To add a new plugin, extract the downloaded archive to its own directory at /var/www/imscp/gui/public/tools/webmail/plugins and add its name to the array list in /var/www/imscp/gui/public/tools/webmail/config/main.inc.php
Joel G Mathew, known in tech circles by the pseudonym Droidzone, is an opensource and programming enthusiast.
He is a full stack developer, whose favorite languages are currently Python and Vue.js. He is also fluent in Javascript, Flutter/Dart, Perl, PHP, SQL, C and bash shell scripting. He loves Linux, and can often be found tinkering with linux kernel code, and source code for GNU applications. He used to be an active developer on XDA forums, and his tinkered ROMS used to be very popular in the early 2000s.
His favorite pastime is grappling with GNU compilers, discovering newer Linux secrets, writing scripts, hacking roms, and programs (nothing illegal), reading, blogging. and testing out the latest gadgets.
When away from the tech world, Dr Joel G. Mathew is a practising ENT Surgeon, busy with surgeries and clinical practise.