I'm trying to compress my incoming Maildir-formatted mail. My server is Ubuntu 14.04 LTS.
In /etc/dovecot/conf.d/10-mail.conf
:
mail_plugins = $mail_plugins zlib
In /etc/dovecot/conf.d/90-plugin.conf
:
plugin {
zlib_save_level = 9
zlib_save = lz4
}
The dovecot log says:
Error: zlib_save: Unknown handler: lz4
I have installed the following packages in an attempt to remedy this:
apt-get install liblz4-1 liblz1 liblz4-dev liblz4-tool liblz-dev lzma libwrap0