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Roundcube plugin for customize character encoding of sending message.
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* Overview
This plugin adds a option to mail composing preference.
The option specifies which charset to be used in sending message.


* Installation
Put this plugin as plugins/sendcharset, then edit config/main.inc.php:

 $rcmail_config['plugins'] = array('sendcharset');


* Configuration
Copy config.inc.php.dist to config.inc.php and edit that.
There is only a option which specifies default sending charset.
If it is not set, keeps default behavior(UTF-8 may be used).